Answers

  • Brainly User
2014-10-28T23:46:54+05:30
the mean proportional, or geometric mean, is always written in the following format: 

a/x = x/r, where a and r are two different numbers. 
so the mean proportion of 5 and 20 is 
5/x = x/20. just cross multiply and get 100 = x^2, which makes x = 10. 1
10 is the mean proportional.
1 5 1