Finding the Third Proportional to 18,744.75 and 21,174.75
Calculator
Solution
The third proportional to 18,744.75 and 21,174.75 is: 23,919.77
Step by Step Solution
- Step 1: Write the proportion equation
18,744.75 : 21,174.75 = 21,174.75 : x - Step 2: Convert to fraction form
18,744.75/21,174.75 = 21,174.75/x - Step 3: Cross multiply
18,744.75x = 21,174.75 × 21,174.75 - Step 4: Simplify right side
18,744.75x = 448,370,037.56 - Step 5: Solve for x
x = 448,370,037.56/18,744.75 - Step 6: Final answer
x = 23,919.77
Related Problems
Find third proportional to 9,372.38 and 10,587.38
Half scale
Find third proportional to 37,489.50 and 42,349.50
Double scale
Find third proportional to 18,747 and 21,177
Similar ratio
Find third proportional to 28,117.13 and 31,762.13
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.