Home / 13,591.98-20,391.16-4,231.52

Finding the Fourth Proportional to 13,591.98, 20,391.16 and 4,231.52

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Solution

The fourth proportional to 13,591.98, 20,391.16 and 4,231.52 is: 6,348.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,591.98 : 20,391.16 = 4,231.52 : x
  2. Step 2: Convert to fraction form
    13,591.98/20,391.16 = 4,231.52/x
  3. Step 3: Cross multiply
    13,591.98x = 20,391.16 × 4,231.52
  4. Step 4: Simplify right side
    13,591.98x = 86,285,601.36
  5. Step 5: Solve for x
    x = 86,285,601.36/13,591.98
  6. Step 6: Final answer
    x = 6,348.27

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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.