Home / 33,380.40-50,035.98-20,871.71

Finding the Fourth Proportional to 33,380.40, 50,035.98 and 20,871.71

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Solution

The fourth proportional to 33,380.40, 50,035.98 and 20,871.71 is: 31,285.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,380.40 : 50,035.98 = 20,871.71 : x
  2. Step 2: Convert to fraction form
    33,380.40/50,035.98 = 20,871.71/x
  3. Step 3: Cross multiply
    33,380.40x = 50,035.98 × 20,871.71
  4. Step 4: Simplify right side
    33,380.40x = 1,044,336,213.95
  5. Step 5: Solve for x
    x = 1,044,336,213.95/33,380.40
  6. Step 6: Final answer
    x = 31,285.91

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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.