Home / 20,240.98-30,343.10-7,086.17

Finding the Fourth Proportional to 20,240.98, 30,343.10 and 7,086.17

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Solution

The fourth proportional to 20,240.98, 30,343.10 and 7,086.17 is: 10,622.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,240.98 : 30,343.10 = 7,086.17 : x
  2. Step 2: Convert to fraction form
    20,240.98/30,343.10 = 7,086.17/x
  3. Step 3: Cross multiply
    20,240.98x = 30,343.10 × 7,086.17
  4. Step 4: Simplify right side
    20,240.98x = 215,016,405.35
  5. Step 5: Solve for x
    x = 215,016,405.35/20,240.98
  6. Step 6: Final answer
    x = 10,622.83

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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.