Home / 40,912.36-61,344.24-12,824.80

Finding the Fourth Proportional to 40,912.36, 61,344.24 and 12,824.80

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Solution

The fourth proportional to 40,912.36, 61,344.24 and 12,824.80 is: 19,229.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,912.36 : 61,344.24 = 12,824.80 : x
  2. Step 2: Convert to fraction form
    40,912.36/61,344.24 = 12,824.80/x
  3. Step 3: Cross multiply
    40,912.36x = 61,344.24 × 12,824.80
  4. Step 4: Simplify right side
    40,912.36x = 786,727,609.15
  5. Step 5: Solve for x
    x = 786,727,609.15/40,912.36
  6. Step 6: Final answer
    x = 19,229.58

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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.