Home / 13,731.90-20,589.63-4,367.88

Finding the Fourth Proportional to 13,731.90, 20,589.63 and 4,367.88

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Solution

The fourth proportional to 13,731.90, 20,589.63 and 4,367.88 is: 6,549.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,731.90 : 20,589.63 = 4,367.88 : x
  2. Step 2: Convert to fraction form
    13,731.90/20,589.63 = 4,367.88/x
  3. Step 3: Cross multiply
    13,731.90x = 20,589.63 × 4,367.88
  4. Step 4: Simplify right side
    13,731.90x = 89,933,033.08
  5. Step 5: Solve for x
    x = 89,933,033.08/13,731.90
  6. Step 6: Final answer
    x = 6,549.21

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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.