Home / 25,983.18-38,971.94-8,451.54

Finding the Fourth Proportional to 25,983.18, 38,971.94 and 8,451.54

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Solution

The fourth proportional to 25,983.18, 38,971.94 and 8,451.54 is: 12,676.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,983.18 : 38,971.94 = 8,451.54 : x
  2. Step 2: Convert to fraction form
    25,983.18/38,971.94 = 8,451.54/x
  3. Step 3: Cross multiply
    25,983.18x = 38,971.94 × 8,451.54
  4. Step 4: Simplify right side
    25,983.18x = 329,372,867.53
  5. Step 5: Solve for x
    x = 329,372,867.53/25,983.18
  6. Step 6: Final answer
    x = 12,676.39

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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.