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Finding the Fourth Proportional to 36,079.29, 49,789.29 and 20,163.72

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Solution

The fourth proportional to 36,079.29, 49,789.29 and 20,163.72 is: 27,825.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,079.29 : 49,789.29 = 20,163.72 : x
  2. Step 2: Convert to fraction form
    36,079.29/49,789.29 = 20,163.72/x
  3. Step 3: Cross multiply
    36,079.29x = 49,789.29 × 20,163.72
  4. Step 4: Simplify right side
    36,079.29x = 1,003,937,302.56
  5. Step 5: Solve for x
    x = 1,003,937,302.56/36,079.29
  6. Step 6: Final answer
    x = 27,825.86

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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.