Home / 31,917.97-47,786.95-16,891.06

Finding the Fourth Proportional to 31,917.97, 47,786.95 and 16,891.06

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Solution

The fourth proportional to 31,917.97, 47,786.95 and 16,891.06 is: 25,288.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,917.97 : 47,786.95 = 16,891.06 : x
  2. Step 2: Convert to fraction form
    31,917.97/47,786.95 = 16,891.06/x
  3. Step 3: Cross multiply
    31,917.97x = 47,786.95 × 16,891.06
  4. Step 4: Simplify right side
    31,917.97x = 807,172,072.76
  5. Step 5: Solve for x
    x = 807,172,072.76/31,917.97
  6. Step 6: Final answer
    x = 25,288.95

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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.