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Finding the Fourth Proportional to 39,332.80, 58,912.80 and 38,468.80

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Solution

The fourth proportional to 39,332.80, 58,912.80 and 38,468.80 is: 57,618.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,332.80 : 58,912.80 = 38,468.80 : x
  2. Step 2: Convert to fraction form
    39,332.80/58,912.80 = 38,468.80/x
  3. Step 3: Cross multiply
    39,332.80x = 58,912.80 × 38,468.80
  4. Step 4: Simplify right side
    39,332.80x = 2,266,304,720.64
  5. Step 5: Solve for x
    x = 2,266,304,720.64/39,332.80
  6. Step 6: Final answer
    x = 57,618.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.