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Finding the Fourth Proportional to 18,332.42, 27,542.64 and 11,771.42

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Solution

The fourth proportional to 18,332.42, 27,542.64 and 11,771.42 is: 17,685.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,332.42 : 27,542.64 = 11,771.42 : x
  2. Step 2: Convert to fraction form
    18,332.42/27,542.64 = 11,771.42/x
  3. Step 3: Cross multiply
    18,332.42x = 27,542.64 × 11,771.42
  4. Step 4: Simplify right side
    18,332.42x = 324,215,889.78
  5. Step 5: Solve for x
    x = 324,215,889.78/18,332.42
  6. Step 6: Final answer
    x = 17,685.39

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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.