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Finding the Fourth Proportional to 18,431, 25,433.96 and 10,473.96

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Solution

The fourth proportional to 18,431, 25,433.96 and 10,473.96 is: 14,453.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,431 : 25,433.96 = 10,473.96 : x
  2. Step 2: Convert to fraction form
    18,431/25,433.96 = 10,473.96/x
  3. Step 3: Cross multiply
    18,431x = 25,433.96 × 10,473.96
  4. Step 4: Simplify right side
    18,431x = 266,394,279.68
  5. Step 5: Solve for x
    x = 266,394,279.68/18,431
  6. Step 6: Final answer
    x = 14,453.60

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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.