Home / 20,512.92-30,827.09-12,194.43

Finding the Fourth Proportional to 20,512.92, 30,827.09 and 12,194.43

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Solution

The fourth proportional to 20,512.92, 30,827.09 and 12,194.43 is: 18,325.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,512.92 : 30,827.09 = 12,194.43 : x
  2. Step 2: Convert to fraction form
    20,512.92/30,827.09 = 12,194.43/x
  3. Step 3: Cross multiply
    20,512.92x = 30,827.09 × 12,194.43
  4. Step 4: Simplify right side
    20,512.92x = 375,918,791.11
  5. Step 5: Solve for x
    x = 375,918,791.11/20,512.92
  6. Step 6: Final answer
    x = 18,325.95

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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.