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Finding the Fourth Proportional to 22,144.58, 30,562.28 and 12,712.94

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Solution

The fourth proportional to 22,144.58, 30,562.28 and 12,712.94 is: 17,545.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,144.58 : 30,562.28 = 12,712.94 : x
  2. Step 2: Convert to fraction form
    22,144.58/30,562.28 = 12,712.94/x
  3. Step 3: Cross multiply
    22,144.58x = 30,562.28 × 12,712.94
  4. Step 4: Simplify right side
    22,144.58x = 388,536,431.90
  5. Step 5: Solve for x
    x = 388,536,431.90/22,144.58
  6. Step 6: Final answer
    x = 17,545.44

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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.