Home / 36,218.61-49,979.19-20,086.77

Finding the Fourth Proportional to 36,218.61, 49,979.19 and 20,086.77

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Solution

The fourth proportional to 36,218.61, 49,979.19 and 20,086.77 is: 27,718.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,218.61 : 49,979.19 = 20,086.77 : x
  2. Step 2: Convert to fraction form
    36,218.61/49,979.19 = 20,086.77/x
  3. Step 3: Cross multiply
    36,218.61x = 49,979.19 × 20,086.77
  4. Step 4: Simplify right side
    36,218.61x = 1,003,920,494.32
  5. Step 5: Solve for x
    x = 1,003,920,494.32/36,218.61
  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.