Home / 20,231.78-30,348.94-6,192.26

Finding the Fourth Proportional to 20,231.78, 30,348.94 and 6,192.26

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Solution

The fourth proportional to 20,231.78, 30,348.94 and 6,192.26 is: 9,288.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,231.78 : 30,348.94 = 6,192.26 : x
  2. Step 2: Convert to fraction form
    20,231.78/30,348.94 = 6,192.26/x
  3. Step 3: Cross multiply
    20,231.78x = 30,348.94 × 6,192.26
  4. Step 4: Simplify right side
    20,231.78x = 187,928,527.20
  5. Step 5: Solve for x
    x = 187,928,527.20/20,231.78
  6. Step 6: Final answer
    x = 9,288.78

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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.