Home / 18,624-39,915

Finding the Third Proportional to 18,624 and 39,915

Calculator

Solution

The third proportional to 18,624 and 39,915 is: 85,545.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,624 : 39,915 = 39,915 : x
  2. Step 2: Convert to fraction form
    18,624/39,915 = 39,915/x
  3. Step 3: Cross multiply
    18,624x = 39,915 × 39,915
  4. Step 4: Simplify right side
    18,624x = 1,593,207,225
  5. Step 5: Solve for x
    x = 1,593,207,225/18,624
  6. Step 6: Final answer
    x = 85,545.92

Related Problems

Find third proportional to 9,312 and 19,957.50
Half scale
Find third proportional to 37,248 and 79,830
Double scale
Find third proportional to 18,626 and 39,919
Similar ratio
Find third proportional to 27,936 and 59,872.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.