Home / 20,251.52-30,380.96-9,163.44

Finding the Fourth Proportional to 20,251.52, 30,380.96 and 9,163.44

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Solution

The fourth proportional to 20,251.52, 30,380.96 and 9,163.44 is: 13,746.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,251.52 : 30,380.96 = 9,163.44 : x
  2. Step 2: Convert to fraction form
    20,251.52/30,380.96 = 9,163.44/x
  3. Step 3: Cross multiply
    20,251.52x = 30,380.96 × 9,163.44
  4. Step 4: Simplify right side
    20,251.52x = 278,394,104.10
  5. Step 5: Solve for x
    x = 278,394,104.10/20,251.52
  6. Step 6: Final answer
    x = 13,746.83

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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.