Home / 21,522.88-32,278.02-8,372.12

Finding the Fourth Proportional to 21,522.88, 32,278.02 and 8,372.12

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Solution

The fourth proportional to 21,522.88, 32,278.02 and 8,372.12 is: 12,555.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,522.88 : 32,278.02 = 8,372.12 : x
  2. Step 2: Convert to fraction form
    21,522.88/32,278.02 = 8,372.12/x
  3. Step 3: Cross multiply
    21,522.88x = 32,278.02 × 8,372.12
  4. Step 4: Simplify right side
    21,522.88x = 270,235,456.80
  5. Step 5: Solve for x
    x = 270,235,456.80/21,522.88
  6. Step 6: Final answer
    x = 12,555.73

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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.