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Finding the Fourth Proportional to 18,197.80, 27,297.42 and 17,940.04

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Solution

The fourth proportional to 18,197.80, 27,297.42 and 17,940.04 is: 26,910.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,197.80 : 27,297.42 = 17,940.04 : x
  2. Step 2: Convert to fraction form
    18,197.80/27,297.42 = 17,940.04/x
  3. Step 3: Cross multiply
    18,197.80x = 27,297.42 × 17,940.04
  4. Step 4: Simplify right side
    18,197.80x = 489,716,806.70
  5. Step 5: Solve for x
    x = 489,716,806.70/18,197.80
  6. Step 6: Final answer
    x = 26,910.77

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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.