Home / 31,218.21-43,082.28-17,791.65

Finding the Fourth Proportional to 31,218.21, 43,082.28 and 17,791.65

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Solution

The fourth proportional to 31,218.21, 43,082.28 and 17,791.65 is: 24,553.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,218.21 : 43,082.28 = 17,791.65 : x
  2. Step 2: Convert to fraction form
    31,218.21/43,082.28 = 17,791.65/x
  3. Step 3: Cross multiply
    31,218.21x = 43,082.28 × 17,791.65
  4. Step 4: Simplify right side
    31,218.21x = 766,504,846.96
  5. Step 5: Solve for x
    x = 766,504,846.96/31,218.21
  6. Step 6: Final answer
    x = 24,553.13

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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.