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Finding the Fourth Proportional to 20,246.28, 27,942.03 and 11,296.89

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Solution

The fourth proportional to 20,246.28, 27,942.03 and 11,296.89 is: 15,590.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,246.28 : 27,942.03 = 11,296.89 : x
  2. Step 2: Convert to fraction form
    20,246.28/27,942.03 = 11,296.89/x
  3. Step 3: Cross multiply
    20,246.28x = 27,942.03 × 11,296.89
  4. Step 4: Simplify right side
    20,246.28x = 315,658,039.29
  5. Step 5: Solve for x
    x = 315,658,039.29/20,246.28
  6. Step 6: Final answer
    x = 15,590.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.