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Finding the Fourth Proportional to 47,860, 71,801.60 and 15,028

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Solution

The fourth proportional to 47,860, 71,801.60 and 15,028 is: 22,545.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,860 : 71,801.60 = 15,028 : x
  2. Step 2: Convert to fraction form
    47,860/71,801.60 = 15,028/x
  3. Step 3: Cross multiply
    47,860x = 71,801.60 × 15,028
  4. Step 4: Simplify right side
    47,860x = 1,079,034,444.80
  5. Step 5: Solve for x
    x = 1,079,034,444.80/47,860
  6. Step 6: Final answer
    x = 22,545.64

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