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Finding the Fourth Proportional to 38,252.60, 57,378.90 and 11,957.30

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Solution

The fourth proportional to 38,252.60, 57,378.90 and 11,957.30 is: 17,935.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,252.60 : 57,378.90 = 11,957.30 : x
  2. Step 2: Convert to fraction form
    38,252.60/57,378.90 = 11,957.30/x
  3. Step 3: Cross multiply
    38,252.60x = 57,378.90 × 11,957.30
  4. Step 4: Simplify right side
    38,252.60x = 686,096,720.97
  5. Step 5: Solve for x
    x = 686,096,720.97/38,252.60
  6. Step 6: Final answer
    x = 17,935.95

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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.