Home / 25,982.21-38,977.40-8,447.94

Finding the Fourth Proportional to 25,982.21, 38,977.40 and 8,447.94

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Solution

The fourth proportional to 25,982.21, 38,977.40 and 8,447.94 is: 12,673.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,982.21 : 38,977.40 = 8,447.94 : x
  2. Step 2: Convert to fraction form
    25,982.21/38,977.40 = 8,447.94/x
  3. Step 3: Cross multiply
    25,982.21x = 38,977.40 × 8,447.94
  4. Step 4: Simplify right side
    25,982.21x = 329,278,757.68
  5. Step 5: Solve for x
    x = 329,278,757.68/25,982.21
  6. Step 6: Final answer
    x = 12,673.24

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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.