Finding the Third Proportional to 20,742 and 31,882
Calculator
Solution
The third proportional to 20,742 and 31,882 is: 49,005.01
Step by Step Solution
- Step 1: Write the proportion equation
20,742 : 31,882 = 31,882 : x - Step 2: Convert to fraction form
20,742/31,882 = 31,882/x - Step 3: Cross multiply
20,742x = 31,882 × 31,882 - Step 4: Simplify right side
20,742x = 1,016,461,924 - Step 5: Solve for x
x = 1,016,461,924/20,742 - Step 6: Final answer
x = 49,005.01
Related Problems
Find third proportional to 10,371 and 15,941
Half scale
Find third proportional to 41,484 and 63,764
Double scale
Find third proportional to 20,744 and 31,885
Similar ratio
Find third proportional to 31,113 and 47,823
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.