Home / 38,551.20-57,764.70-21,861.60

Finding the Fourth Proportional to 38,551.20, 57,764.70 and 21,861.60

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Solution

The fourth proportional to 38,551.20, 57,764.70 and 21,861.60 is: 32,757.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,551.20 : 57,764.70 = 21,861.60 : x
  2. Step 2: Convert to fraction form
    38,551.20/57,764.70 = 21,861.60/x
  3. Step 3: Cross multiply
    38,551.20x = 57,764.70 × 21,861.60
  4. Step 4: Simplify right side
    38,551.20x = 1,262,828,765.52
  5. Step 5: Solve for x
    x = 1,262,828,765.52/38,551.20
  6. Step 6: Final answer
    x = 32,757.18

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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.