Home / 21,194.22-31,790.52-8,549.42

Finding the Fourth Proportional to 21,194.22, 31,790.52 and 8,549.42

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Solution

The fourth proportional to 21,194.22, 31,790.52 and 8,549.42 is: 12,823.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,194.22 : 31,790.52 = 8,549.42 : x
  2. Step 2: Convert to fraction form
    21,194.22/31,790.52 = 8,549.42/x
  3. Step 3: Cross multiply
    21,194.22x = 31,790.52 × 8,549.42
  4. Step 4: Simplify right side
    21,194.22x = 271,790,348.55
  5. Step 5: Solve for x
    x = 271,790,348.55/21,194.22
  6. Step 6: Final answer
    x = 12,823.79

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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.