Home / 26,832.80-40,223.60-20,906.40

Finding the Fourth Proportional to 26,832.80, 40,223.60 and 20,906.40

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Solution

The fourth proportional to 26,832.80, 40,223.60 and 20,906.40 is: 31,339.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,832.80 : 40,223.60 = 20,906.40 : x
  2. Step 2: Convert to fraction form
    26,832.80/40,223.60 = 20,906.40/x
  3. Step 3: Cross multiply
    26,832.80x = 40,223.60 × 20,906.40
  4. Step 4: Simplify right side
    26,832.80x = 840,930,671.04
  5. Step 5: Solve for x
    x = 840,930,671.04/26,832.80
  6. Step 6: Final answer
    x = 31,339.65

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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.