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Finding the Fourth Proportional to 18,212.52, 27,351.54 and 17,381.46

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Solution

The fourth proportional to 18,212.52, 27,351.54 and 17,381.46 is: 26,103.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,212.52 : 27,351.54 = 17,381.46 : x
  2. Step 2: Convert to fraction form
    18,212.52/27,351.54 = 17,381.46/x
  3. Step 3: Cross multiply
    18,212.52x = 27,351.54 × 17,381.46
  4. Step 4: Simplify right side
    18,212.52x = 475,409,698.45
  5. Step 5: Solve for x
    x = 475,409,698.45/18,212.52
  6. Step 6: Final answer
    x = 26,103.46

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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.