Home / 20,065.92-30,103.20-9,539.52

Finding the Fourth Proportional to 20,065.92, 30,103.20 and 9,539.52

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Solution

The fourth proportional to 20,065.92, 30,103.20 and 9,539.52 is: 14,311.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,065.92 : 30,103.20 = 9,539.52 : x
  2. Step 2: Convert to fraction form
    20,065.92/30,103.20 = 9,539.52/x
  3. Step 3: Cross multiply
    20,065.92x = 30,103.20 × 9,539.52
  4. Step 4: Simplify right side
    20,065.92x = 287,170,078.46
  5. Step 5: Solve for x
    x = 287,170,078.46/20,065.92
  6. Step 6: Final answer
    x = 14,311.33

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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.