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Finding the Fourth Proportional to 18,797.27, 27,949.86 and 18,009.95

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Solution

The fourth proportional to 18,797.27, 27,949.86 and 18,009.95 is: 26,779.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,797.27 : 27,949.86 = 18,009.95 : x
  2. Step 2: Convert to fraction form
    18,797.27/27,949.86 = 18,009.95/x
  3. Step 3: Cross multiply
    18,797.27x = 27,949.86 × 18,009.95
  4. Step 4: Simplify right side
    18,797.27x = 503,375,441.36
  5. Step 5: Solve for x
    x = 503,375,441.36/18,797.27
  6. Step 6: Final answer
    x = 26,779.19

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.