Home / 21,838.88-32,758.32-5,422.88

Finding the Fourth Proportional to 21,838.88, 32,758.32 and 5,422.88

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Solution

The fourth proportional to 21,838.88, 32,758.32 and 5,422.88 is: 8,134.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,838.88 : 32,758.32 = 5,422.88 : x
  2. Step 2: Convert to fraction form
    21,838.88/32,758.32 = 5,422.88/x
  3. Step 3: Cross multiply
    21,838.88x = 32,758.32 × 5,422.88
  4. Step 4: Simplify right side
    21,838.88x = 177,644,274.57
  5. Step 5: Solve for x
    x = 177,644,274.57/21,838.88
  6. Step 6: Final answer
    x = 8,134.31

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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.