Home / 21,578.88-32,366.13-6,787.38

Finding the Fourth Proportional to 21,578.88, 32,366.13 and 6,787.38

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Solution

The fourth proportional to 21,578.88, 32,366.13 and 6,787.38 is: 10,180.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,578.88 : 32,366.13 = 6,787.38 : x
  2. Step 2: Convert to fraction form
    21,578.88/32,366.13 = 6,787.38/x
  3. Step 3: Cross multiply
    21,578.88x = 32,366.13 × 6,787.38
  4. Step 4: Simplify right side
    21,578.88x = 219,681,223.44
  5. Step 5: Solve for x
    x = 219,681,223.44/21,578.88
  6. Step 6: Final answer
    x = 10,180.38

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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.