Home / 18,219.45-27,286.82-17,588.09

Finding the Fourth Proportional to 18,219.45, 27,286.82 and 17,588.09

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Solution

The fourth proportional to 18,219.45, 27,286.82 and 17,588.09 is: 26,341.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,219.45 : 27,286.82 = 17,588.09 : x
  2. Step 2: Convert to fraction form
    18,219.45/27,286.82 = 17,588.09/x
  3. Step 3: Cross multiply
    18,219.45x = 27,286.82 × 17,588.09
  4. Step 4: Simplify right side
    18,219.45x = 479,923,037.65
  5. Step 5: Solve for x
    x = 479,923,037.65/18,219.45
  6. Step 6: Final answer
    x = 26,341.25

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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.