Home / 33,270.75-49,881.52-20,120.20

Finding the Fourth Proportional to 33,270.75, 49,881.52 and 20,120.20

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Solution

The fourth proportional to 33,270.75, 49,881.52 and 20,120.20 is: 30,165.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,270.75 : 49,881.52 = 20,120.20 : x
  2. Step 2: Convert to fraction form
    33,270.75/49,881.52 = 20,120.20/x
  3. Step 3: Cross multiply
    33,270.75x = 49,881.52 × 20,120.20
  4. Step 4: Simplify right side
    33,270.75x = 1,003,626,059.15
  5. Step 5: Solve for x
    x = 1,003,626,059.15/33,270.75
  6. Step 6: Final answer
    x = 30,165.42

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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.