Home / 21,179.44-29,226.24-11,747.68

Finding the Fourth Proportional to 21,179.44, 29,226.24 and 11,747.68

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Solution

The fourth proportional to 21,179.44, 29,226.24 and 11,747.68 is: 16,211.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,179.44 : 29,226.24 = 11,747.68 : x
  2. Step 2: Convert to fraction form
    21,179.44/29,226.24 = 11,747.68/x
  3. Step 3: Cross multiply
    21,179.44x = 29,226.24 × 11,747.68
  4. Step 4: Simplify right side
    21,179.44x = 343,340,515.12
  5. Step 5: Solve for x
    x = 343,340,515.12/21,179.44
  6. Step 6: Final answer
    x = 16,211.03

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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.