Home / 25,942.88-38,919.79-8,411.34

Finding the Fourth Proportional to 25,942.88, 38,919.79 and 8,411.34

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Solution

The fourth proportional to 25,942.88, 38,919.79 and 8,411.34 is: 12,618.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,942.88 : 38,919.79 = 8,411.34 : x
  2. Step 2: Convert to fraction form
    25,942.88/38,919.79 = 8,411.34/x
  3. Step 3: Cross multiply
    25,942.88x = 38,919.79 × 8,411.34
  4. Step 4: Simplify right side
    25,942.88x = 327,367,742.88
  5. Step 5: Solve for x
    x = 327,367,742.88/25,942.88
  6. Step 6: Final answer
    x = 12,618.79

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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.