Home / 21,613.22-32,401.35-8,295.78

Finding the Fourth Proportional to 21,613.22, 32,401.35 and 8,295.78

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Solution

The fourth proportional to 21,613.22, 32,401.35 and 8,295.78 is: 12,436.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,613.22 : 32,401.35 = 8,295.78 : x
  2. Step 2: Convert to fraction form
    21,613.22/32,401.35 = 8,295.78/x
  3. Step 3: Cross multiply
    21,613.22x = 32,401.35 × 8,295.78
  4. Step 4: Simplify right side
    21,613.22x = 268,794,471.30
  5. Step 5: Solve for x
    x = 268,794,471.30/21,613.22
  6. Step 6: Final answer
    x = 12,436.58

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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.