Home / 39,331.87-54,277.68-21,426.82

Finding the Fourth Proportional to 39,331.87, 54,277.68 and 21,426.82

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Solution

The fourth proportional to 39,331.87, 54,277.68 and 21,426.82 is: 29,568.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,331.87 : 54,277.68 = 21,426.82 : x
  2. Step 2: Convert to fraction form
    39,331.87/54,277.68 = 21,426.82/x
  3. Step 3: Cross multiply
    39,331.87x = 54,277.68 × 21,426.82
  4. Step 4: Simplify right side
    39,331.87x = 1,162,998,079.38
  5. Step 5: Solve for x
    x = 1,162,998,079.38/39,331.87
  6. Step 6: Final answer
    x = 29,568.85

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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.