Home / 45,233.20-67,857.90-18,940.60

Finding the Fourth Proportional to 45,233.20, 67,857.90 and 18,940.60

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Solution

The fourth proportional to 45,233.20, 67,857.90 and 18,940.60 is: 28,414.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,233.20 : 67,857.90 = 18,940.60 : x
  2. Step 2: Convert to fraction form
    45,233.20/67,857.90 = 18,940.60/x
  3. Step 3: Cross multiply
    45,233.20x = 67,857.90 × 18,940.60
  4. Step 4: Simplify right side
    45,233.20x = 1,285,269,340.74
  5. Step 5: Solve for x
    x = 1,285,269,340.74/45,233.20
  6. Step 6: Final answer
    x = 28,414.29

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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.