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Finding the Fourth Proportional to 26,830.80, 40,249.80 and 11,244.78

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Solution

The fourth proportional to 26,830.80, 40,249.80 and 11,244.78 is: 16,868.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,830.80 : 40,249.80 = 11,244.78 : x
  2. Step 2: Convert to fraction form
    26,830.80/40,249.80 = 11,244.78/x
  3. Step 3: Cross multiply
    26,830.80x = 40,249.80 × 11,244.78
  4. Step 4: Simplify right side
    26,830.80x = 452,600,146.04
  5. Step 5: Solve for x
    x = 452,600,146.04/26,830.80
  6. Step 6: Final answer
    x = 16,868.68

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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.