Home / 13,631.66-20,443.14-4,395.50

Finding the Fourth Proportional to 13,631.66, 20,443.14 and 4,395.50

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Solution

The fourth proportional to 13,631.66, 20,443.14 and 4,395.50 is: 6,591.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,631.66 : 20,443.14 = 4,395.50 : x
  2. Step 2: Convert to fraction form
    13,631.66/20,443.14 = 4,395.50/x
  3. Step 3: Cross multiply
    13,631.66x = 20,443.14 × 4,395.50
  4. Step 4: Simplify right side
    13,631.66x = 89,857,821.87
  5. Step 5: Solve for x
    x = 89,857,821.87/13,631.66
  6. Step 6: Final answer
    x = 6,591.85

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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.