Home / 33,707.80-50,576.28-13,990.78

Finding the Fourth Proportional to 33,707.80, 50,576.28 and 13,990.78

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Solution

The fourth proportional to 33,707.80, 50,576.28 and 13,990.78 is: 20,992.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,707.80 : 50,576.28 = 13,990.78 : x
  2. Step 2: Convert to fraction form
    33,707.80/50,576.28 = 13,990.78/x
  3. Step 3: Cross multiply
    33,707.80x = 50,576.28 × 13,990.78
  4. Step 4: Simplify right side
    33,707.80x = 707,601,606.70
  5. Step 5: Solve for x
    x = 707,601,606.70/33,707.80
  6. Step 6: Final answer
    x = 20,992.22

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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.