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Finding the Fourth Proportional to 33,163.40, 49,672.20 and 19,992.80

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Solution

The fourth proportional to 33,163.40, 49,672.20 and 19,992.80 is: 29,945.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,163.40 : 49,672.20 = 19,992.80 : x
  2. Step 2: Convert to fraction form
    33,163.40/49,672.20 = 19,992.80/x
  3. Step 3: Cross multiply
    33,163.40x = 49,672.20 × 19,992.80
  4. Step 4: Simplify right side
    33,163.40x = 993,086,360.16
  5. Step 5: Solve for x
    x = 993,086,360.16/33,163.40
  6. Step 6: Final answer
    x = 29,945.25

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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.