Home / 20,614.72-28,451.38-13,061.76

Finding the Fourth Proportional to 20,614.72, 28,451.38 and 13,061.76

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Solution

The fourth proportional to 20,614.72, 28,451.38 and 13,061.76 is: 18,027.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,614.72 : 28,451.38 = 13,061.76 : x
  2. Step 2: Convert to fraction form
    20,614.72/28,451.38 = 13,061.76/x
  3. Step 3: Cross multiply
    20,614.72x = 28,451.38 × 13,061.76
  4. Step 4: Simplify right side
    20,614.72x = 371,625,167.01
  5. Step 5: Solve for x
    x = 371,625,167.01/20,614.72
  6. Step 6: Final answer
    x = 18,027.17

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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.