Home / 36,218.62-49,979.18-20,086.78

Finding the Fourth Proportional to 36,218.62, 49,979.18 and 20,086.78

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Solution

The fourth proportional to 36,218.62, 49,979.18 and 20,086.78 is: 27,718.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,218.62 : 49,979.18 = 20,086.78 : x
  2. Step 2: Convert to fraction form
    36,218.62/49,979.18 = 20,086.78/x
  3. Step 3: Cross multiply
    36,218.62x = 49,979.18 × 20,086.78
  4. Step 4: Simplify right side
    36,218.62x = 1,003,920,793.24
  5. Step 5: Solve for x
    x = 1,003,920,793.24/36,218.62
  6. Step 6: Final answer
    x = 27,718.36

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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.