Home / 39,397.05-54,359.51-38,046.78

Finding the Fourth Proportional to 39,397.05, 54,359.51 and 38,046.78

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Solution

The fourth proportional to 39,397.05, 54,359.51 and 38,046.78 is: 52,496.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,397.05 : 54,359.51 = 38,046.78 : x
  2. Step 2: Convert to fraction form
    39,397.05/54,359.51 = 38,046.78/x
  3. Step 3: Cross multiply
    39,397.05x = 54,359.51 × 38,046.78
  4. Step 4: Simplify right side
    39,397.05x = 2,068,204,127.64
  5. Step 5: Solve for x
    x = 2,068,204,127.64/39,397.05
  6. Step 6: Final answer
    x = 52,496.42

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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.