Home / 22,696.90-31,321.28-12,625

Finding the Fourth Proportional to 22,696.90, 31,321.28 and 12,625

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Solution

The fourth proportional to 22,696.90, 31,321.28 and 12,625 is: 17,422.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,696.90 : 31,321.28 = 12,625 : x
  2. Step 2: Convert to fraction form
    22,696.90/31,321.28 = 12,625/x
  3. Step 3: Cross multiply
    22,696.90x = 31,321.28 × 12,625
  4. Step 4: Simplify right side
    22,696.90x = 395,431,160
  5. Step 5: Solve for x
    x = 395,431,160/22,696.90
  6. Step 6: Final answer
    x = 17,422.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.