Home / 39,128.28-58,691.80-15,754.16

Finding the Fourth Proportional to 39,128.28, 58,691.80 and 15,754.16

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Solution

The fourth proportional to 39,128.28, 58,691.80 and 15,754.16 is: 23,630.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,128.28 : 58,691.80 = 15,754.16 : x
  2. Step 2: Convert to fraction form
    39,128.28/58,691.80 = 15,754.16/x
  3. Step 3: Cross multiply
    39,128.28x = 58,691.80 × 15,754.16
  4. Step 4: Simplify right side
    39,128.28x = 924,640,007.89
  5. Step 5: Solve for x
    x = 924,640,007.89/39,128.28
  6. Step 6: Final answer
    x = 23,630.99

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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.