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Finding the Fourth Proportional to 18,288, 25,238.52 and 10,331.10

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Solution

The fourth proportional to 18,288, 25,238.52 and 10,331.10 is: 14,257.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,288 : 25,238.52 = 10,331.10 : x
  2. Step 2: Convert to fraction form
    18,288/25,238.52 = 10,331.10/x
  3. Step 3: Cross multiply
    18,288x = 25,238.52 × 10,331.10
  4. Step 4: Simplify right side
    18,288x = 260,741,673.97
  5. Step 5: Solve for x
    x = 260,741,673.97/18,288
  6. Step 6: Final answer
    x = 14,257.53

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Why These Related Problems?

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