Home / 21,472.38-32,200.07-8,321.22

Finding the Fourth Proportional to 21,472.38, 32,200.07 and 8,321.22

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Solution

The fourth proportional to 21,472.38, 32,200.07 and 8,321.22 is: 12,478.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,472.38 : 32,200.07 = 8,321.22 : x
  2. Step 2: Convert to fraction form
    21,472.38/32,200.07 = 8,321.22/x
  3. Step 3: Cross multiply
    21,472.38x = 32,200.07 × 8,321.22
  4. Step 4: Simplify right side
    21,472.38x = 267,943,824.88
  5. Step 5: Solve for x
    x = 267,943,824.88/21,472.38
  6. Step 6: Final answer
    x = 12,478.53

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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.