Home / 40,018.88-55,229.38-22,117.38

Finding the Fourth Proportional to 40,018.88, 55,229.38 and 22,117.38

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Solution

The fourth proportional to 40,018.88, 55,229.38 and 22,117.38 is: 30,523.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,018.88 : 55,229.38 = 22,117.38 : x
  2. Step 2: Convert to fraction form
    40,018.88/55,229.38 = 22,117.38/x
  3. Step 3: Cross multiply
    40,018.88x = 55,229.38 × 22,117.38
  4. Step 4: Simplify right side
    40,018.88x = 1,221,529,184.62
  5. Step 5: Solve for x
    x = 1,221,529,184.62/40,018.88
  6. Step 6: Final answer
    x = 30,523.82

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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.