Home / 22,229.20-33,408.60-21,840.40

Finding the Fourth Proportional to 22,229.20, 33,408.60 and 21,840.40

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Solution

The fourth proportional to 22,229.20, 33,408.60 and 21,840.40 is: 32,824.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,229.20 : 33,408.60 = 21,840.40 : x
  2. Step 2: Convert to fraction form
    22,229.20/33,408.60 = 21,840.40/x
  3. Step 3: Cross multiply
    22,229.20x = 33,408.60 × 21,840.40
  4. Step 4: Simplify right side
    22,229.20x = 729,657,187.44
  5. Step 5: Solve for x
    x = 729,657,187.44/22,229.20
  6. Step 6: Final answer
    x = 32,824.27

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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.