Answer:
20
Step-by-step explanation:
Assuming you mean 8:20, x:50 (ratios) we can simplify the ratio since 8 and 20 are even, to better see the relationship between x and 50.
8/20 = 4/10 = 2/5
In it's simplest form, the ratio is 2/5 (two-fifths)
Since it is stated that the two are proportional:
2:5 = x:50
We now get 2/5 of 50 (Since 50 is the 5 here, and x is now known to be 2 in the simplest form)
2/5 * 50 = 20
