Home / 21,963.91-32,959.40-8,634.56

Finding the Fourth Proportional to 21,963.91, 32,959.40 and 8,634.56

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Solution

The fourth proportional to 21,963.91, 32,959.40 and 8,634.56 is: 12,957.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,963.91 : 32,959.40 = 8,634.56 : x
  2. Step 2: Convert to fraction form
    21,963.91/32,959.40 = 8,634.56/x
  3. Step 3: Cross multiply
    21,963.91x = 32,959.40 × 8,634.56
  4. Step 4: Simplify right side
    21,963.91x = 284,589,942.86
  5. Step 5: Solve for x
    x = 284,589,942.86/21,963.91
  6. Step 6: Final answer
    x = 12,957.16

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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.