Home / 33,415.20-50,122.80-13,691.70

Finding the Fourth Proportional to 33,415.20, 50,122.80 and 13,691.70

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Solution

The fourth proportional to 33,415.20, 50,122.80 and 13,691.70 is: 20,537.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,415.20 : 50,122.80 = 13,691.70 : x
  2. Step 2: Convert to fraction form
    33,415.20/50,122.80 = 13,691.70/x
  3. Step 3: Cross multiply
    33,415.20x = 50,122.80 × 13,691.70
  4. Step 4: Simplify right side
    33,415.20x = 686,266,340.76
  5. Step 5: Solve for x
    x = 686,266,340.76/33,415.20
  6. Step 6: Final answer
    x = 20,537.55

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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.