Home / 40,221.74-55,469.67-25,115.78

Finding the Fourth Proportional to 40,221.74, 55,469.67 and 25,115.78

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Solution

The fourth proportional to 40,221.74, 55,469.67 and 25,115.78 is: 34,637.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,221.74 : 55,469.67 = 25,115.78 : x
  2. Step 2: Convert to fraction form
    40,221.74/55,469.67 = 25,115.78/x
  3. Step 3: Cross multiply
    40,221.74x = 55,469.67 × 25,115.78
  4. Step 4: Simplify right side
    40,221.74x = 1,393,164,028.39
  5. Step 5: Solve for x
    x = 1,393,164,028.39/40,221.74
  6. Step 6: Final answer
    x = 34,637.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.