Home / 20,839.70-31,253.98-5,845.92

Finding the Fourth Proportional to 20,839.70, 31,253.98 and 5,845.92

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Solution

The fourth proportional to 20,839.70, 31,253.98 and 5,845.92 is: 8,767.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,839.70 : 31,253.98 = 5,845.92 : x
  2. Step 2: Convert to fraction form
    20,839.70/31,253.98 = 5,845.92/x
  3. Step 3: Cross multiply
    20,839.70x = 31,253.98 × 5,845.92
  4. Step 4: Simplify right side
    20,839.70x = 182,708,266.76
  5. Step 5: Solve for x
    x = 182,708,266.76/20,839.70
  6. Step 6: Final answer
    x = 8,767.32

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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.