Home / 25,400.89-38,087.42-7,865.85

Finding the Fourth Proportional to 25,400.89, 38,087.42 and 7,865.85

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Solution

The fourth proportional to 25,400.89, 38,087.42 and 7,865.85 is: 11,794.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,400.89 : 38,087.42 = 7,865.85 : x
  2. Step 2: Convert to fraction form
    25,400.89/38,087.42 = 7,865.85/x
  3. Step 3: Cross multiply
    25,400.89x = 38,087.42 × 7,865.85
  4. Step 4: Simplify right side
    25,400.89x = 299,589,893.28
  5. Step 5: Solve for x
    x = 299,589,893.28/25,400.89
  6. Step 6: Final answer
    x = 11,794.46

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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.