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Finding the Fourth Proportional to 21,959.52, 32,939.55 and 6,163.65

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Solution

The fourth proportional to 21,959.52, 32,939.55 and 6,163.65 is: 9,245.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,959.52 : 32,939.55 = 6,163.65 : x
  2. Step 2: Convert to fraction form
    21,959.52/32,939.55 = 6,163.65/x
  3. Step 3: Cross multiply
    21,959.52x = 32,939.55 × 6,163.65
  4. Step 4: Simplify right side
    21,959.52x = 203,027,857.36
  5. Step 5: Solve for x
    x = 203,027,857.36/21,959.52
  6. Step 6: Final answer
    x = 9,245.55

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1.5x scale

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.