Finding the Third Proportional to 20,628 and 29,970
Calculator
Solution
The third proportional to 20,628 and 29,970 is: 43,542.80
Step by Step Solution
- Step 1: Write the proportion equation
20,628 : 29,970 = 29,970 : x - Step 2: Convert to fraction form
20,628/29,970 = 29,970/x - Step 3: Cross multiply
20,628x = 29,970 × 29,970 - Step 4: Simplify right side
20,628x = 898,200,900 - Step 5: Solve for x
x = 898,200,900/20,628 - Step 6: Final answer
x = 43,542.80
Related Problems
Find third proportional to 10,314 and 14,985
Half scale
Find third proportional to 41,256 and 59,940
Double scale
Find third proportional to 20,630 and 29,973
Similar ratio
Find third proportional to 30,942 and 44,955
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.