Home / 39,446.87-54,434.58-21,538.38

Finding the Fourth Proportional to 39,446.87, 54,434.58 and 21,538.38

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Solution

The fourth proportional to 39,446.87, 54,434.58 and 21,538.38 is: 29,721.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,446.87 : 54,434.58 = 21,538.38 : x
  2. Step 2: Convert to fraction form
    39,446.87/54,434.58 = 21,538.38/x
  3. Step 3: Cross multiply
    39,446.87x = 54,434.58 × 21,538.38
  4. Step 4: Simplify right side
    39,446.87x = 1,172,432,760.60
  5. Step 5: Solve for x
    x = 1,172,432,760.60/39,446.87
  6. Step 6: Final answer
    x = 29,721.82

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Double scale
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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.