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Finding the Fourth Proportional to 38,612, 57,917.88 and 25,368.68

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Solution

The fourth proportional to 38,612, 57,917.88 and 25,368.68 is: 38,052.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,612 : 57,917.88 = 25,368.68 : x
  2. Step 2: Convert to fraction form
    38,612/57,917.88 = 25,368.68/x
  3. Step 3: Cross multiply
    38,612x = 57,917.88 × 25,368.68
  4. Step 4: Simplify right side
    38,612x = 1,469,300,164.00
  5. Step 5: Solve for x
    x = 1,469,300,164.00/38,612
  6. Step 6: Final answer
    x = 38,052.94

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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.