Home / 18,487.42-27,732.54-5,339.90

Finding the Fourth Proportional to 18,487.42, 27,732.54 and 5,339.90

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Solution

The fourth proportional to 18,487.42, 27,732.54 and 5,339.90 is: 8,010.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,487.42 : 27,732.54 = 5,339.90 : x
  2. Step 2: Convert to fraction form
    18,487.42/27,732.54 = 5,339.90/x
  3. Step 3: Cross multiply
    18,487.42x = 27,732.54 × 5,339.90
  4. Step 4: Simplify right side
    18,487.42x = 148,088,990.35
  5. Step 5: Solve for x
    x = 148,088,990.35/18,487.42
  6. Step 6: Final answer
    x = 8,010.26

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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.