Home / 39,786.38-54,891.75-22,556.89

Finding the Fourth Proportional to 39,786.38, 54,891.75 and 22,556.89

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Solution

The fourth proportional to 39,786.38, 54,891.75 and 22,556.89 is: 31,120.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,786.38 : 54,891.75 = 22,556.89 : x
  2. Step 2: Convert to fraction form
    39,786.38/54,891.75 = 22,556.89/x
  3. Step 3: Cross multiply
    39,786.38x = 54,891.75 × 22,556.89
  4. Step 4: Simplify right side
    39,786.38x = 1,238,187,238.45
  5. Step 5: Solve for x
    x = 1,238,187,238.45/39,786.38
  6. Step 6: Final answer
    x = 31,120.88

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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.