Home / 31,777.38-47,651.27-11,786.07

Finding the Fourth Proportional to 31,777.38, 47,651.27 and 11,786.07

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Solution

The fourth proportional to 31,777.38, 47,651.27 and 11,786.07 is: 17,673.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,777.38 : 47,651.27 = 11,786.07 : x
  2. Step 2: Convert to fraction form
    31,777.38/47,651.27 = 11,786.07/x
  3. Step 3: Cross multiply
    31,777.38x = 47,651.27 × 11,786.07
  4. Step 4: Simplify right side
    31,777.38x = 561,621,144.88
  5. Step 5: Solve for x
    x = 561,621,144.88/31,777.38
  6. Step 6: Final answer
    x = 17,673.61

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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.