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Finding the Fourth Proportional to 21,151.52, 29,192.15 and 12,197.24

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Solution

The fourth proportional to 21,151.52, 29,192.15 and 12,197.24 is: 16,833.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,151.52 : 29,192.15 = 12,197.24 : x
  2. Step 2: Convert to fraction form
    21,151.52/29,192.15 = 12,197.24/x
  3. Step 3: Cross multiply
    21,151.52x = 29,192.15 × 12,197.24
  4. Step 4: Simplify right side
    21,151.52x = 356,063,544.20
  5. Step 5: Solve for x
    x = 356,063,544.20/21,151.52
  6. Step 6: Final answer
    x = 16,833.95

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.