Home / 21,984.26-32,963.97-8,661.38

Finding the Fourth Proportional to 21,984.26, 32,963.97 and 8,661.38

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Solution

The fourth proportional to 21,984.26, 32,963.97 and 8,661.38 is: 12,987.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,984.26 : 32,963.97 = 8,661.38 : x
  2. Step 2: Convert to fraction form
    21,984.26/32,963.97 = 8,661.38/x
  3. Step 3: Cross multiply
    21,984.26x = 32,963.97 × 8,661.38
  4. Step 4: Simplify right side
    21,984.26x = 285,513,470.48
  5. Step 5: Solve for x
    x = 285,513,470.48/21,984.26
  6. Step 6: Final answer
    x = 12,987.18

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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.