Home / 40,405.62-60,611.89-12,331.99

Finding the Fourth Proportional to 40,405.62, 60,611.89 and 12,331.99

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Solution

The fourth proportional to 40,405.62, 60,611.89 and 12,331.99 is: 18,499.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,405.62 : 60,611.89 = 12,331.99 : x
  2. Step 2: Convert to fraction form
    40,405.62/60,611.89 = 12,331.99/x
  3. Step 3: Cross multiply
    40,405.62x = 60,611.89 × 12,331.99
  4. Step 4: Simplify right side
    40,405.62x = 747,465,221.36
  5. Step 5: Solve for x
    x = 747,465,221.36/40,405.62
  6. Step 6: Final answer
    x = 18,499.04

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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.