Home / 20,010.48-30,023.79-8,909.58

Finding the Fourth Proportional to 20,010.48, 30,023.79 and 8,909.58

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Solution

The fourth proportional to 20,010.48, 30,023.79 and 8,909.58 is: 13,367.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,010.48 : 30,023.79 = 8,909.58 : x
  2. Step 2: Convert to fraction form
    20,010.48/30,023.79 = 8,909.58/x
  3. Step 3: Cross multiply
    20,010.48x = 30,023.79 × 8,909.58
  4. Step 4: Simplify right side
    20,010.48x = 267,499,358.91
  5. Step 5: Solve for x
    x = 267,499,358.91/20,010.48
  6. Step 6: Final answer
    x = 13,367.96

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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.