Home / 20,132.72-30,149.66-16,601.12

Finding the Fourth Proportional to 20,132.72, 30,149.66 and 16,601.12

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Solution

The fourth proportional to 20,132.72, 30,149.66 and 16,601.12 is: 24,860.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,132.72 : 30,149.66 = 16,601.12 : x
  2. Step 2: Convert to fraction form
    20,132.72/30,149.66 = 16,601.12/x
  3. Step 3: Cross multiply
    20,132.72x = 30,149.66 × 16,601.12
  4. Step 4: Simplify right side
    20,132.72x = 500,517,889.87
  5. Step 5: Solve for x
    x = 500,517,889.87/20,132.72
  6. Step 6: Final answer
    x = 24,860.92

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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.