Home / 40,328.20-60,449.10-18,137.80

Finding the Fourth Proportional to 40,328.20, 60,449.10 and 18,137.80

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Solution

The fourth proportional to 40,328.20, 60,449.10 and 18,137.80 is: 27,187.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,328.20 : 60,449.10 = 18,137.80 : x
  2. Step 2: Convert to fraction form
    40,328.20/60,449.10 = 18,137.80/x
  3. Step 3: Cross multiply
    40,328.20x = 60,449.10 × 18,137.80
  4. Step 4: Simplify right side
    40,328.20x = 1,096,413,685.98
  5. Step 5: Solve for x
    x = 1,096,413,685.98/40,328.20
  6. Step 6: Final answer
    x = 27,187.27

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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.