Home / 38,791.17-58,132.50-20,983.38

Finding the Fourth Proportional to 38,791.17, 58,132.50 and 20,983.38

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Solution

The fourth proportional to 38,791.17, 58,132.50 and 20,983.38 is: 31,445.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,791.17 : 58,132.50 = 20,983.38 : x
  2. Step 2: Convert to fraction form
    38,791.17/58,132.50 = 20,983.38/x
  3. Step 3: Cross multiply
    38,791.17x = 58,132.50 × 20,983.38
  4. Step 4: Simplify right side
    38,791.17x = 1,219,816,337.85
  5. Step 5: Solve for x
    x = 1,219,816,337.85/38,791.17
  6. Step 6: Final answer
    x = 31,445.72

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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.