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Finding the Fourth Proportional to 43,391, 65,092.98 and 15,695.48

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Solution

The fourth proportional to 43,391, 65,092.98 and 15,695.48 is: 23,545.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,391 : 65,092.98 = 15,695.48 : x
  2. Step 2: Convert to fraction form
    43,391/65,092.98 = 15,695.48/x
  3. Step 3: Cross multiply
    43,391x = 65,092.98 × 15,695.48
  4. Step 4: Simplify right side
    43,391x = 1,021,665,565.73
  5. Step 5: Solve for x
    x = 1,021,665,565.73/43,391
  6. Step 6: Final answer
    x = 23,545.56

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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.