Home / 38,511.20-57,692.04-21,819.92

Finding the Fourth Proportional to 38,511.20, 57,692.04 and 21,819.92

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Solution

The fourth proportional to 38,511.20, 57,692.04 and 21,819.92 is: 32,687.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,511.20 : 57,692.04 = 21,819.92 : x
  2. Step 2: Convert to fraction form
    38,511.20/57,692.04 = 21,819.92/x
  3. Step 3: Cross multiply
    38,511.20x = 57,692.04 × 21,819.92
  4. Step 4: Simplify right side
    38,511.20x = 1,258,835,697.44
  5. Step 5: Solve for x
    x = 1,258,835,697.44/38,511.20
  6. Step 6: Final answer
    x = 32,687.52

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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.