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Finding the Fourth Proportional to 36,231, 54,351.36 and 15,459.36

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Solution

The fourth proportional to 36,231, 54,351.36 and 15,459.36 is: 23,191.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,231 : 54,351.36 = 15,459.36 : x
  2. Step 2: Convert to fraction form
    36,231/54,351.36 = 15,459.36/x
  3. Step 3: Cross multiply
    36,231x = 54,351.36 × 15,459.36
  4. Step 4: Simplify right side
    36,231x = 840,237,240.73
  5. Step 5: Solve for x
    x = 840,237,240.73/36,231
  6. Step 6: Final answer
    x = 23,191.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.