Home / 20,308.91-30,463.20-5,517.73

Finding the Fourth Proportional to 20,308.91, 30,463.20 and 5,517.73

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Solution

The fourth proportional to 20,308.91, 30,463.20 and 5,517.73 is: 8,276.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,308.91 : 30,463.20 = 5,517.73 : x
  2. Step 2: Convert to fraction form
    20,308.91/30,463.20 = 5,517.73/x
  3. Step 3: Cross multiply
    20,308.91x = 30,463.20 × 5,517.73
  4. Step 4: Simplify right side
    20,308.91x = 168,087,801.21
  5. Step 5: Solve for x
    x = 168,087,801.21/20,308.91
  6. Step 6: Final answer
    x = 8,276.55

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1.5x scale

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.