Home / 33,309.76-49,976.46-20,815.36

Finding the Fourth Proportional to 33,309.76, 49,976.46 and 20,815.36

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Solution

The fourth proportional to 33,309.76, 49,976.46 and 20,815.36 is: 31,230.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,309.76 : 49,976.46 = 20,815.36 : x
  2. Step 2: Convert to fraction form
    33,309.76/49,976.46 = 20,815.36/x
  3. Step 3: Cross multiply
    33,309.76x = 49,976.46 × 20,815.36
  4. Step 4: Simplify right side
    33,309.76x = 1,040,278,006.43
  5. Step 5: Solve for x
    x = 1,040,278,006.43/33,309.76
  6. Step 6: Final answer
    x = 31,230.43

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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.