Home / 28,836-43,234.56-23,198.40

Finding the Fourth Proportional to 28,836, 43,234.56 and 23,198.40

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Solution

The fourth proportional to 28,836, 43,234.56 and 23,198.40 is: 34,781.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,836 : 43,234.56 = 23,198.40 : x
  2. Step 2: Convert to fraction form
    28,836/43,234.56 = 23,198.40/x
  3. Step 3: Cross multiply
    28,836x = 43,234.56 × 23,198.40
  4. Step 4: Simplify right side
    28,836x = 1,002,972,616.70
  5. Step 5: Solve for x
    x = 1,002,972,616.70/28,836
  6. Step 6: Final answer
    x = 34,781.96

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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.