Home / 21,909.44-32,872.28-15,718.88

Finding the Fourth Proportional to 21,909.44, 32,872.28 and 15,718.88

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Solution

The fourth proportional to 21,909.44, 32,872.28 and 15,718.88 is: 23,584.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,909.44 : 32,872.28 = 15,718.88 : x
  2. Step 2: Convert to fraction form
    21,909.44/32,872.28 = 15,718.88/x
  3. Step 3: Cross multiply
    21,909.44x = 32,872.28 × 15,718.88
  4. Step 4: Simplify right side
    21,909.44x = 516,715,424.65
  5. Step 5: Solve for x
    x = 516,715,424.65/21,909.44
  6. Step 6: Final answer
    x = 23,584.15

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1.5x scale

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.