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Finding the Fourth Proportional to 33,761.88, 50,614.09 and 20,623.48

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Solution

The fourth proportional to 33,761.88, 50,614.09 and 20,623.48 is: 30,917.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,761.88 : 50,614.09 = 20,623.48 : x
  2. Step 2: Convert to fraction form
    33,761.88/50,614.09 = 20,623.48/x
  3. Step 3: Cross multiply
    33,761.88x = 50,614.09 × 20,623.48
  4. Step 4: Simplify right side
    33,761.88x = 1,043,838,494.74
  5. Step 5: Solve for x
    x = 1,043,838,494.74/33,761.88
  6. Step 6: Final answer
    x = 30,917.66

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1.5x scale

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.