Home / 20,166.21-30,249.21-7,683.30

Finding the Fourth Proportional to 20,166.21, 30,249.21 and 7,683.30

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Solution

The fourth proportional to 20,166.21, 30,249.21 and 7,683.30 is: 11,524.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,166.21 : 30,249.21 = 7,683.30 : x
  2. Step 2: Convert to fraction form
    20,166.21/30,249.21 = 7,683.30/x
  3. Step 3: Cross multiply
    20,166.21x = 30,249.21 × 7,683.30
  4. Step 4: Simplify right side
    20,166.21x = 232,413,755.19
  5. Step 5: Solve for x
    x = 232,413,755.19/20,166.21
  6. Step 6: Final answer
    x = 11,524.91

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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.