Home / 22,408.20-33,612.30-12,385.80

Finding the Fourth Proportional to 22,408.20, 33,612.30 and 12,385.80

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Solution

The fourth proportional to 22,408.20, 33,612.30 and 12,385.80 is: 18,578.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,408.20 : 33,612.30 = 12,385.80 : x
  2. Step 2: Convert to fraction form
    22,408.20/33,612.30 = 12,385.80/x
  3. Step 3: Cross multiply
    22,408.20x = 33,612.30 × 12,385.80
  4. Step 4: Simplify right side
    22,408.20x = 416,315,225.34
  5. Step 5: Solve for x
    x = 416,315,225.34/22,408.20
  6. Step 6: Final answer
    x = 18,578.70

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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.