Home / 36,079.18-49,789.12-20,163.62

Finding the Fourth Proportional to 36,079.18, 49,789.12 and 20,163.62

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Solution

The fourth proportional to 36,079.18, 49,789.12 and 20,163.62 is: 27,825.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,079.18 : 49,789.12 = 20,163.62 : x
  2. Step 2: Convert to fraction form
    36,079.18/49,789.12 = 20,163.62/x
  3. Step 3: Cross multiply
    36,079.18x = 49,789.12 × 20,163.62
  4. Step 4: Simplify right side
    36,079.18x = 1,003,928,895.81
  5. Step 5: Solve for x
    x = 1,003,928,895.81/36,079.18
  6. Step 6: Final answer
    x = 27,825.71

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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.