Home / 20,517.70-30,776.10-5,726.20

Finding the Fourth Proportional to 20,517.70, 30,776.10 and 5,726.20

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Solution

The fourth proportional to 20,517.70, 30,776.10 and 5,726.20 is: 8,589.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,517.70 : 30,776.10 = 5,726.20 : x
  2. Step 2: Convert to fraction form
    20,517.70/30,776.10 = 5,726.20/x
  3. Step 3: Cross multiply
    20,517.70x = 30,776.10 × 5,726.20
  4. Step 4: Simplify right side
    20,517.70x = 176,230,103.82
  5. Step 5: Solve for x
    x = 176,230,103.82/20,517.70
  6. Step 6: Final answer
    x = 8,589.17

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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.