Home / 40,127.72-55,371.69-22,218.21

Finding the Fourth Proportional to 40,127.72, 55,371.69 and 22,218.21

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Solution

The fourth proportional to 40,127.72, 55,371.69 and 22,218.21 is: 30,658.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,127.72 : 55,371.69 = 22,218.21 : x
  2. Step 2: Convert to fraction form
    40,127.72/55,371.69 = 22,218.21/x
  3. Step 3: Cross multiply
    40,127.72x = 55,371.69 × 22,218.21
  4. Step 4: Simplify right side
    40,127.72x = 1,230,259,836.47
  5. Step 5: Solve for x
    x = 1,230,259,836.47/40,127.72
  6. Step 6: Final answer
    x = 30,658.61

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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.