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Finding the Fourth Proportional to 26,822.40, 40,233.60 and 19,910.40

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Solution

The fourth proportional to 26,822.40, 40,233.60 and 19,910.40 is: 29,865.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,822.40 : 40,233.60 = 19,910.40 : x
  2. Step 2: Convert to fraction form
    26,822.40/40,233.60 = 19,910.40/x
  3. Step 3: Cross multiply
    26,822.40x = 40,233.60 × 19,910.40
  4. Step 4: Simplify right side
    26,822.40x = 801,067,069.44
  5. Step 5: Solve for x
    x = 801,067,069.44/26,822.40
  6. Step 6: Final answer
    x = 29,865.60

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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.