Home / 25,858.41-38,787.61-7,137.82

Finding the Fourth Proportional to 25,858.41, 38,787.61 and 7,137.82

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Solution

The fourth proportional to 25,858.41, 38,787.61 and 7,137.82 is: 10,706.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,858.41 : 38,787.61 = 7,137.82 : x
  2. Step 2: Convert to fraction form
    25,858.41/38,787.61 = 7,137.82/x
  3. Step 3: Cross multiply
    25,858.41x = 38,787.61 × 7,137.82
  4. Step 4: Simplify right side
    25,858.41x = 276,858,978.41
  5. Step 5: Solve for x
    x = 276,858,978.41/25,858.41
  6. Step 6: Final answer
    x = 10,706.73

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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.