Home / 20,249.60-30,374.40-7,103.30

Finding the Fourth Proportional to 20,249.60, 30,374.40 and 7,103.30

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Solution

The fourth proportional to 20,249.60, 30,374.40 and 7,103.30 is: 10,654.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,249.60 : 30,374.40 = 7,103.30 : x
  2. Step 2: Convert to fraction form
    20,249.60/30,374.40 = 7,103.30/x
  3. Step 3: Cross multiply
    20,249.60x = 30,374.40 × 7,103.30
  4. Step 4: Simplify right side
    20,249.60x = 215,758,475.52
  5. Step 5: Solve for x
    x = 215,758,475.52/20,249.60
  6. Step 6: Final answer
    x = 10,654.95

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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.