Home / 33,010.80-49,443.30-13,279.20

Finding the Fourth Proportional to 33,010.80, 49,443.30 and 13,279.20

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Solution

The fourth proportional to 33,010.80, 49,443.30 and 13,279.20 is: 19,889.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,010.80 : 49,443.30 = 13,279.20 : x
  2. Step 2: Convert to fraction form
    33,010.80/49,443.30 = 13,279.20/x
  3. Step 3: Cross multiply
    33,010.80x = 49,443.30 × 13,279.20
  4. Step 4: Simplify right side
    33,010.80x = 656,567,469.36
  5. Step 5: Solve for x
    x = 656,567,469.36/33,010.80
  6. Step 6: Final answer
    x = 19,889.47

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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.