Home / 33,342.21-50,013.38-13,620.78

Finding the Fourth Proportional to 33,342.21, 50,013.38 and 13,620.78

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Solution

The fourth proportional to 33,342.21, 50,013.38 and 13,620.78 is: 20,431.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,342.21 : 50,013.38 = 13,620.78 : x
  2. Step 2: Convert to fraction form
    33,342.21/50,013.38 = 13,620.78/x
  3. Step 3: Cross multiply
    33,342.21x = 50,013.38 × 13,620.78
  4. Step 4: Simplify right side
    33,342.21x = 681,221,280.09
  5. Step 5: Solve for x
    x = 681,221,280.09/33,342.21
  6. Step 6: Final answer
    x = 20,431.20

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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.