Home / 20,512.76-30,769.00-5,721.75

Finding the Fourth Proportional to 20,512.76, 30,769.00 and 5,721.75

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Solution

The fourth proportional to 20,512.76, 30,769.00 and 5,721.75 is: 8,582.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,512.76 : 30,769.00 = 5,721.75 : x
  2. Step 2: Convert to fraction form
    20,512.76/30,769.00 = 5,721.75/x
  3. Step 3: Cross multiply
    20,512.76x = 30,769.00 × 5,721.75
  4. Step 4: Simplify right side
    20,512.76x = 176,052,511.45
  5. Step 5: Solve for x
    x = 176,052,511.45/20,512.76
  6. Step 6: Final answer
    x = 8,582.59

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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.