Home / 37,287.54-55,906.20-12,318.75

Finding the Fourth Proportional to 37,287.54, 55,906.20 and 12,318.75

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Solution

The fourth proportional to 37,287.54, 55,906.20 and 12,318.75 is: 18,469.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,287.54 : 55,906.20 = 12,318.75 : x
  2. Step 2: Convert to fraction form
    37,287.54/55,906.20 = 12,318.75/x
  3. Step 3: Cross multiply
    37,287.54x = 55,906.20 × 12,318.75
  4. Step 4: Simplify right side
    37,287.54x = 688,694,501.25
  5. Step 5: Solve for x
    x = 688,694,501.25/37,287.54
  6. Step 6: Final answer
    x = 18,469.83

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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.