Home / 39,658.52-54,732.28-21,757.02

Finding the Fourth Proportional to 39,658.52, 54,732.28 and 21,757.02

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Solution

The fourth proportional to 39,658.52, 54,732.28 and 21,757.02 is: 30,026.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,658.52 : 54,732.28 = 21,757.02 : x
  2. Step 2: Convert to fraction form
    39,658.52/54,732.28 = 21,757.02/x
  3. Step 3: Cross multiply
    39,658.52x = 54,732.28 × 21,757.02
  4. Step 4: Simplify right side
    39,658.52x = 1,190,811,310.61
  5. Step 5: Solve for x
    x = 1,190,811,310.61/39,658.52
  6. Step 6: Final answer
    x = 30,026.62

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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.