Home / 18,221.47-27,331.43-5,750.44

Finding the Fourth Proportional to 18,221.47, 27,331.43 and 5,750.44

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Solution

The fourth proportional to 18,221.47, 27,331.43 and 5,750.44 is: 8,625.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,221.47 : 27,331.43 = 5,750.44 : x
  2. Step 2: Convert to fraction form
    18,221.47/27,331.43 = 5,750.44/x
  3. Step 3: Cross multiply
    18,221.47x = 27,331.43 × 5,750.44
  4. Step 4: Simplify right side
    18,221.47x = 157,167,859.57
  5. Step 5: Solve for x
    x = 157,167,859.57/18,221.47
  6. Step 6: Final answer
    x = 8,625.42

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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.