Home / 22,858.88-31,542.56-12,787.84

Finding the Fourth Proportional to 22,858.88, 31,542.56 and 12,787.84

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Solution

The fourth proportional to 22,858.88, 31,542.56 and 12,787.84 is: 17,645.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,858.88 : 31,542.56 = 12,787.84 : x
  2. Step 2: Convert to fraction form
    22,858.88/31,542.56 = 12,787.84/x
  3. Step 3: Cross multiply
    22,858.88x = 31,542.56 × 12,787.84
  4. Step 4: Simplify right side
    22,858.88x = 403,361,210.47
  5. Step 5: Solve for x
    x = 403,361,210.47/22,858.88
  6. Step 6: Final answer
    x = 17,645.71

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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.