Home / 20,512.82-30,764.10-5,721.14

Finding the Fourth Proportional to 20,512.82, 30,764.10 and 5,721.14

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Solution

The fourth proportional to 20,512.82, 30,764.10 and 5,721.14 is: 8,580.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,512.82 : 30,764.10 = 5,721.14 : x
  2. Step 2: Convert to fraction form
    20,512.82/30,764.10 = 5,721.14/x
  3. Step 3: Cross multiply
    20,512.82x = 30,764.10 × 5,721.14
  4. Step 4: Simplify right side
    20,512.82x = 176,005,723.07
  5. Step 5: Solve for x
    x = 176,005,723.07/20,512.82
  6. Step 6: Final answer
    x = 8,580.28

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1.5x scale

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.