Home / 18,161.82-27,113.13-15,369.75

Finding the Fourth Proportional to 18,161.82, 27,113.13 and 15,369.75

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Solution

The fourth proportional to 18,161.82, 27,113.13 and 15,369.75 is: 22,944.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,161.82 : 27,113.13 = 15,369.75 : x
  2. Step 2: Convert to fraction form
    18,161.82/27,113.13 = 15,369.75/x
  3. Step 3: Cross multiply
    18,161.82x = 27,113.13 × 15,369.75
  4. Step 4: Simplify right side
    18,161.82x = 416,722,029.82
  5. Step 5: Solve for x
    x = 416,722,029.82/18,161.82
  6. Step 6: Final answer
    x = 22,944.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.