Home / 38,138.40-57,207.60-36,583.20

Finding the Fourth Proportional to 38,138.40, 57,207.60 and 36,583.20

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Solution

The fourth proportional to 38,138.40, 57,207.60 and 36,583.20 is: 54,874.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,138.40 : 57,207.60 = 36,583.20 : x
  2. Step 2: Convert to fraction form
    38,138.40/57,207.60 = 36,583.20/x
  3. Step 3: Cross multiply
    38,138.40x = 57,207.60 × 36,583.20
  4. Step 4: Simplify right side
    38,138.40x = 2,092,837,072.32
  5. Step 5: Solve for x
    x = 2,092,837,072.32/38,138.40
  6. Step 6: Final answer
    x = 54,874.80

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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.