Home / 21,819.18-32,728.80-6,236.82

Finding the Fourth Proportional to 21,819.18, 32,728.80 and 6,236.82

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Solution

The fourth proportional to 21,819.18, 32,728.80 and 6,236.82 is: 9,355.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,819.18 : 32,728.80 = 6,236.82 : x
  2. Step 2: Convert to fraction form
    21,819.18/32,728.80 = 6,236.82/x
  3. Step 3: Cross multiply
    21,819.18x = 32,728.80 × 6,236.82
  4. Step 4: Simplify right side
    21,819.18x = 204,123,634.42
  5. Step 5: Solve for x
    x = 204,123,634.42/21,819.18
  6. Step 6: Final answer
    x = 9,355.24

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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.