Home / 22,403.13-30,920.99-13,451.01

Finding the Fourth Proportional to 22,403.13, 30,920.99 and 13,451.01

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Solution

The fourth proportional to 22,403.13, 30,920.99 and 13,451.01 is: 18,565.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,403.13 : 30,920.99 = 13,451.01 : x
  2. Step 2: Convert to fraction form
    22,403.13/30,920.99 = 13,451.01/x
  3. Step 3: Cross multiply
    22,403.13x = 30,920.99 × 13,451.01
  4. Step 4: Simplify right side
    22,403.13x = 415,918,545.70
  5. Step 5: Solve for x
    x = 415,918,545.70/22,403.13
  6. Step 6: Final answer
    x = 18,565.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.