Home / 21,839.25-32,758.88-5,423.25

Finding the Fourth Proportional to 21,839.25, 32,758.88 and 5,423.25

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Solution

The fourth proportional to 21,839.25, 32,758.88 and 5,423.25 is: 8,134.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,839.25 : 32,758.88 = 5,423.25 : x
  2. Step 2: Convert to fraction form
    21,839.25/32,758.88 = 5,423.25/x
  3. Step 3: Cross multiply
    21,839.25x = 32,758.88 × 5,423.25
  4. Step 4: Simplify right side
    21,839.25x = 177,659,568.84
  5. Step 5: Solve for x
    x = 177,659,568.84/21,839.25
  6. Step 6: Final answer
    x = 8,134.88

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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.