Home / 20,529.27-30,791.24-6,490.71

Finding the Fourth Proportional to 20,529.27, 30,791.24 and 6,490.71

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Solution

The fourth proportional to 20,529.27, 30,791.24 and 6,490.71 is: 9,735.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,529.27 : 30,791.24 = 6,490.71 : x
  2. Step 2: Convert to fraction form
    20,529.27/30,791.24 = 6,490.71/x
  3. Step 3: Cross multiply
    20,529.27x = 30,791.24 × 6,490.71
  4. Step 4: Simplify right side
    20,529.27x = 199,856,822.97
  5. Step 5: Solve for x
    x = 199,856,822.97/20,529.27
  6. Step 6: Final answer
    x = 9,735.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.