Home / 36,143.50-49,879.16-20,227.92

Finding the Fourth Proportional to 36,143.50, 49,879.16 and 20,227.92

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Solution

The fourth proportional to 36,143.50, 49,879.16 and 20,227.92 is: 27,915.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,143.50 : 49,879.16 = 20,227.92 : x
  2. Step 2: Convert to fraction form
    36,143.50/49,879.16 = 20,227.92/x
  3. Step 3: Cross multiply
    36,143.50x = 49,879.16 × 20,227.92
  4. Step 4: Simplify right side
    36,143.50x = 1,008,951,658.15
  5. Step 5: Solve for x
    x = 1,008,951,658.15/36,143.50
  6. Step 6: Final answer
    x = 27,915.16

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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.