Home / 20,441.44-28,183.20-15,666.88

Finding the Fourth Proportional to 20,441.44, 28,183.20 and 15,666.88

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Solution

The fourth proportional to 20,441.44, 28,183.20 and 15,666.88 is: 21,600.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,441.44 : 28,183.20 = 15,666.88 : x
  2. Step 2: Convert to fraction form
    20,441.44/28,183.20 = 15,666.88/x
  3. Step 3: Cross multiply
    20,441.44x = 28,183.20 × 15,666.88
  4. Step 4: Simplify right side
    20,441.44x = 441,542,812.42
  5. Step 5: Solve for x
    x = 441,542,812.42/20,441.44
  6. Step 6: Final answer
    x = 21,600.38

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Similar ratio
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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.