Home / 21,149.22-31,721.29-5,568.06

Finding the Fourth Proportional to 21,149.22, 31,721.29 and 5,568.06

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Solution

The fourth proportional to 21,149.22, 31,721.29 and 5,568.06 is: 8,351.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,149.22 : 31,721.29 = 5,568.06 : x
  2. Step 2: Convert to fraction form
    21,149.22/31,721.29 = 5,568.06/x
  3. Step 3: Cross multiply
    21,149.22x = 31,721.29 × 5,568.06
  4. Step 4: Simplify right side
    21,149.22x = 176,626,046.00
  5. Step 5: Solve for x
    x = 176,626,046.00/21,149.22
  6. Step 6: Final answer
    x = 8,351.42

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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.