Home / 11,028.20-16,542.29-2,820.20

Finding the Fourth Proportional to 11,028.20, 16,542.29 and 2,820.20

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Solution

The fourth proportional to 11,028.20, 16,542.29 and 2,820.20 is: 4,230.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,028.20 : 16,542.29 = 2,820.20 : x
  2. Step 2: Convert to fraction form
    11,028.20/16,542.29 = 2,820.20/x
  3. Step 3: Cross multiply
    11,028.20x = 16,542.29 × 2,820.20
  4. Step 4: Simplify right side
    11,028.20x = 46,652,469.45
  5. Step 5: Solve for x
    x = 46,652,469.45/11,028.20
  6. Step 6: Final answer
    x = 4,230.29

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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.