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Finding the Fourth Proportional to 18,269.44, 27,243.74 and 18,103.12

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Solution

The fourth proportional to 18,269.44, 27,243.74 and 18,103.12 is: 26,995.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,269.44 : 27,243.74 = 18,103.12 : x
  2. Step 2: Convert to fraction form
    18,269.44/27,243.74 = 18,103.12/x
  3. Step 3: Cross multiply
    18,269.44x = 27,243.74 × 18,103.12
  4. Step 4: Simplify right side
    18,269.44x = 493,196,694.47
  5. Step 5: Solve for x
    x = 493,196,694.47/18,269.44
  6. Step 6: Final answer
    x = 26,995.72

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1.5x scale

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.