Home / 21,249.53-31,874.31-5,667.15

Finding the Fourth Proportional to 21,249.53, 31,874.31 and 5,667.15

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Solution

The fourth proportional to 21,249.53, 31,874.31 and 5,667.15 is: 8,500.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,249.53 : 31,874.31 = 5,667.15 : x
  2. Step 2: Convert to fraction form
    21,249.53/31,874.31 = 5,667.15/x
  3. Step 3: Cross multiply
    21,249.53x = 31,874.31 × 5,667.15
  4. Step 4: Simplify right side
    21,249.53x = 180,636,495.92
  5. Step 5: Solve for x
    x = 180,636,495.92/21,249.53
  6. Step 6: Final answer
    x = 8,500.73

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Similar ratio
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1.5x scale

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.