Home / 20,332.84-28,061.82-12,375.88

Finding the Fourth Proportional to 20,332.84, 28,061.82 and 12,375.88

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Solution

The fourth proportional to 20,332.84, 28,061.82 and 12,375.88 is: 17,080.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,332.84 : 28,061.82 = 12,375.88 : x
  2. Step 2: Convert to fraction form
    20,332.84/28,061.82 = 12,375.88/x
  3. Step 3: Cross multiply
    20,332.84x = 28,061.82 × 12,375.88
  4. Step 4: Simplify right side
    20,332.84x = 347,289,716.90
  5. Step 5: Solve for x
    x = 347,289,716.90/20,332.84
  6. Step 6: Final answer
    x = 17,080.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.