Home / 31,979.46-47,982.98-17,171.06

Finding the Fourth Proportional to 31,979.46, 47,982.98 and 17,171.06

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Solution

The fourth proportional to 31,979.46, 47,982.98 and 17,171.06 is: 25,763.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,979.46 : 47,982.98 = 17,171.06 : x
  2. Step 2: Convert to fraction form
    31,979.46/47,982.98 = 17,171.06/x
  3. Step 3: Cross multiply
    31,979.46x = 47,982.98 × 17,171.06
  4. Step 4: Simplify right side
    31,979.46x = 823,918,628.56
  5. Step 5: Solve for x
    x = 823,918,628.56/31,979.46
  6. Step 6: Final answer
    x = 25,763.99

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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.