Home / 13,930.38-20,896.92-4,069.80

Finding the Fourth Proportional to 13,930.38, 20,896.92 and 4,069.80

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Solution

The fourth proportional to 13,930.38, 20,896.92 and 4,069.80 is: 6,105.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,930.38 : 20,896.92 = 4,069.80 : x
  2. Step 2: Convert to fraction form
    13,930.38/20,896.92 = 4,069.80/x
  3. Step 3: Cross multiply
    13,930.38x = 20,896.92 × 4,069.80
  4. Step 4: Simplify right side
    13,930.38x = 85,046,285.02
  5. Step 5: Solve for x
    x = 85,046,285.02/13,930.38
  6. Step 6: Final answer
    x = 6,105.09

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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.