Home / 20,512.82-30,769.23-6,472.89

Finding the Fourth Proportional to 20,512.82, 30,769.23 and 6,472.89

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Solution

The fourth proportional to 20,512.82, 30,769.23 and 6,472.89 is: 9,709.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,512.82 : 30,769.23 = 6,472.89 : x
  2. Step 2: Convert to fraction form
    20,512.82/30,769.23 = 6,472.89/x
  3. Step 3: Cross multiply
    20,512.82x = 30,769.23 × 6,472.89
  4. Step 4: Simplify right side
    20,512.82x = 199,165,841.17
  5. Step 5: Solve for x
    x = 199,165,841.17/20,512.82
  6. Step 6: Final answer
    x = 9,709.34

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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.