Home / 21,555.33-29,745.09-11,994.90

Finding the Fourth Proportional to 21,555.33, 29,745.09 and 11,994.90

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Solution

The fourth proportional to 21,555.33, 29,745.09 and 11,994.90 is: 16,552.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,555.33 : 29,745.09 = 11,994.90 : x
  2. Step 2: Convert to fraction form
    21,555.33/29,745.09 = 11,994.90/x
  3. Step 3: Cross multiply
    21,555.33x = 29,745.09 × 11,994.90
  4. Step 4: Simplify right side
    21,555.33x = 356,789,380.04
  5. Step 5: Solve for x
    x = 356,789,380.04/21,555.33
  6. Step 6: Final answer
    x = 16,552.26

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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.