Home / 20,190.66-30,287.52-6,151.88

Finding the Fourth Proportional to 20,190.66, 30,287.52 and 6,151.88

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Solution

The fourth proportional to 20,190.66, 30,287.52 and 6,151.88 is: 9,228.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,190.66 : 30,287.52 = 6,151.88 : x
  2. Step 2: Convert to fraction form
    20,190.66/30,287.52 = 6,151.88/x
  3. Step 3: Cross multiply
    20,190.66x = 30,287.52 × 6,151.88
  4. Step 4: Simplify right side
    20,190.66x = 186,325,188.54
  5. Step 5: Solve for x
    x = 186,325,188.54/20,190.66
  6. Step 6: Final answer
    x = 9,228.29

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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.