Home / 25,982.08-38,974.51-8,211.39

Finding the Fourth Proportional to 25,982.08, 38,974.51 and 8,211.39

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Solution

The fourth proportional to 25,982.08, 38,974.51 and 8,211.39 is: 12,317.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,982.08 : 38,974.51 = 8,211.39 : x
  2. Step 2: Convert to fraction form
    25,982.08/38,974.51 = 8,211.39/x
  3. Step 3: Cross multiply
    25,982.08x = 38,974.51 × 8,211.39
  4. Step 4: Simplify right side
    25,982.08x = 320,034,821.31
  5. Step 5: Solve for x
    x = 320,034,821.31/25,982.08
  6. Step 6: Final answer
    x = 12,317.52

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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.