Home / 20,512.94-30,774.60-5,721.85

Finding the Fourth Proportional to 20,512.94, 30,774.60 and 5,721.85

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Solution

The fourth proportional to 20,512.94, 30,774.60 and 5,721.85 is: 8,584.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,512.94 : 30,774.60 = 5,721.85 : x
  2. Step 2: Convert to fraction form
    20,512.94/30,774.60 = 5,721.85/x
  3. Step 3: Cross multiply
    20,512.94x = 30,774.60 × 5,721.85
  4. Step 4: Simplify right side
    20,512.94x = 176,087,645.01
  5. Step 5: Solve for x
    x = 176,087,645.01/20,512.94
  6. Step 6: Final answer
    x = 8,584.22

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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.