Home / 20,292.16-28,002.16-11,337.92

Finding the Fourth Proportional to 20,292.16, 28,002.16 and 11,337.92

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Solution

The fourth proportional to 20,292.16, 28,002.16 and 11,337.92 is: 15,645.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,292.16 : 28,002.16 = 11,337.92 : x
  2. Step 2: Convert to fraction form
    20,292.16/28,002.16 = 11,337.92/x
  3. Step 3: Cross multiply
    20,292.16x = 28,002.16 × 11,337.92
  4. Step 4: Simplify right side
    20,292.16x = 317,486,249.91
  5. Step 5: Solve for x
    x = 317,486,249.91/20,292.16
  6. Step 6: Final answer
    x = 15,645.76

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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.