21 imperial quarts in dry quarts
Result
The conversion result is: 21 imperial quarts is equivalent to 21.6731916132627 dry quarts.[1]
Conversion formula
How to convert 21 imperial quarts to dry quarts?
We know (by definition) that: 1 imperialquart ≈ 1.0320567434887 dryquart.
We can set up a proportion to solve for the number of dry quarts.
1 imperialquart / 21 imperialquart ≈ 1.0320567434887 dryquart / x dryquart
Now, we cross multiply to solve for our unknown x:
x dryquart ≈ (21 imperialquart / 1 imperialquart) * 1.0320567434887 dryquart → x dryquart ≈ 21.673191613262702 dryquart
Conclusion:
21 imperialquart ≈ 21.673191613262702 dryquart

Conversion in the opposite direction
The inverse of the conversion factor is that 1 dry quart is equal to 0.0461399510438536 times 21 imperial quarts.
It can also be expressed as: 21 imperial quarts is equal to 1 / 0.0461399510438536 dry quarts.
Approximation
An approximate numerical result would be: twenty-one imperial quarts is about twenty-one point six seven dry quarts, or alternatively, a dry quart is about zero point zero five times twenty-one imperial quarts.
Footnotes
[1] The precision is 15 significant digits (fourteen digits to the right of the decimal point).
Results may contain small errors due to the use of floating point arithmetic.