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Finding the Fourth Proportional to 27,545.61, 38,013.87 and 15,446.61

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Solution

The fourth proportional to 27,545.61, 38,013.87 and 15,446.61 is: 21,316.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,545.61 : 38,013.87 = 15,446.61 : x
  2. Step 2: Convert to fraction form
    27,545.61/38,013.87 = 15,446.61/x
  3. Step 3: Cross multiply
    27,545.61x = 38,013.87 × 15,446.61
  4. Step 4: Simplify right side
    27,545.61x = 587,185,424.48
  5. Step 5: Solve for x
    x = 587,185,424.48/27,545.61
  6. Step 6: Final answer
    x = 21,316.84

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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.