Home / 21,591.75-32,373.71-9,108.44

Finding the Fourth Proportional to 21,591.75, 32,373.71 and 9,108.44

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Solution

The fourth proportional to 21,591.75, 32,373.71 and 9,108.44 is: 13,656.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,591.75 : 32,373.71 = 9,108.44 : x
  2. Step 2: Convert to fraction form
    21,591.75/32,373.71 = 9,108.44/x
  3. Step 3: Cross multiply
    21,591.75x = 32,373.71 × 9,108.44
  4. Step 4: Simplify right side
    21,591.75x = 294,873,787.70
  5. Step 5: Solve for x
    x = 294,873,787.70/21,591.75
  6. Step 6: Final answer
    x = 13,656.78

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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.