Home / 30,249.45-41,745.20-16,821.27

Finding the Fourth Proportional to 30,249.45, 41,745.20 and 16,821.27

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Solution

The fourth proportional to 30,249.45, 41,745.20 and 16,821.27 is: 23,213.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,249.45 : 41,745.20 = 16,821.27 : x
  2. Step 2: Convert to fraction form
    30,249.45/41,745.20 = 16,821.27/x
  3. Step 3: Cross multiply
    30,249.45x = 41,745.20 × 16,821.27
  4. Step 4: Simplify right side
    30,249.45x = 702,207,196.30
  5. Step 5: Solve for x
    x = 702,207,196.30/30,249.45
  6. Step 6: Final answer
    x = 23,213.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.