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Finding the Fourth Proportional to 33,055.80, 49,479.12 and 21,193.74

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Solution

The fourth proportional to 33,055.80, 49,479.12 and 21,193.74 is: 31,723.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,055.80 : 49,479.12 = 21,193.74 : x
  2. Step 2: Convert to fraction form
    33,055.80/49,479.12 = 21,193.74/x
  3. Step 3: Cross multiply
    33,055.80x = 49,479.12 × 21,193.74
  4. Step 4: Simplify right side
    33,055.80x = 1,048,647,604.71
  5. Step 5: Solve for x
    x = 1,048,647,604.71/33,055.80
  6. Step 6: Final answer
    x = 31,723.56

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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.