Home / 21,468.80-32,213.52-11,080.55

Finding the Fourth Proportional to 21,468.80, 32,213.52 and 11,080.55

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Solution

The fourth proportional to 21,468.80, 32,213.52 and 11,080.55 is: 16,626.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,468.80 : 32,213.52 = 11,080.55 : x
  2. Step 2: Convert to fraction form
    21,468.80/32,213.52 = 11,080.55/x
  3. Step 3: Cross multiply
    21,468.80x = 32,213.52 × 11,080.55
  4. Step 4: Simplify right side
    21,468.80x = 356,943,357.97
  5. Step 5: Solve for x
    x = 356,943,357.97/21,468.80
  6. Step 6: Final answer
    x = 16,626.15

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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.