Home / 20,103.60-27,753.96-12,147.84

Finding the Fourth Proportional to 20,103.60, 27,753.96 and 12,147.84

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Solution

The fourth proportional to 20,103.60, 27,753.96 and 12,147.84 is: 16,770.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,103.60 : 27,753.96 = 12,147.84 : x
  2. Step 2: Convert to fraction form
    20,103.60/27,753.96 = 12,147.84/x
  3. Step 3: Cross multiply
    20,103.60x = 27,753.96 × 12,147.84
  4. Step 4: Simplify right side
    20,103.60x = 337,150,665.45
  5. Step 5: Solve for x
    x = 337,150,665.45/20,103.60
  6. Step 6: Final answer
    x = 16,770.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.