Home / 20,194.60-30,234.30-12,418.60

Finding the Fourth Proportional to 20,194.60, 30,234.30 and 12,418.60

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Solution

The fourth proportional to 20,194.60, 30,234.30 and 12,418.60 is: 18,592.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,194.60 : 30,234.30 = 12,418.60 : x
  2. Step 2: Convert to fraction form
    20,194.60/30,234.30 = 12,418.60/x
  3. Step 3: Cross multiply
    20,194.60x = 30,234.30 × 12,418.60
  4. Step 4: Simplify right side
    20,194.60x = 375,467,677.98
  5. Step 5: Solve for x
    x = 375,467,677.98/20,194.60
  6. Step 6: Final answer
    x = 18,592.48

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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.