Home / 20,262.35-30,375.15-7,107.55

Finding the Fourth Proportional to 20,262.35, 30,375.15 and 7,107.55

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Solution

The fourth proportional to 20,262.35, 30,375.15 and 7,107.55 is: 10,654.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,262.35 : 30,375.15 = 7,107.55 : x
  2. Step 2: Convert to fraction form
    20,262.35/30,375.15 = 7,107.55/x
  3. Step 3: Cross multiply
    20,262.35x = 30,375.15 × 7,107.55
  4. Step 4: Simplify right side
    20,262.35x = 215,892,834.77
  5. Step 5: Solve for x
    x = 215,892,834.77/20,262.35
  6. Step 6: Final answer
    x = 10,654.88

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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.