Home / 21,297.80-29,391.17-11,738.03

Finding the Fourth Proportional to 21,297.80, 29,391.17 and 11,738.03

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Solution

The fourth proportional to 21,297.80, 29,391.17 and 11,738.03 is: 16,198.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,297.80 : 29,391.17 = 11,738.03 : x
  2. Step 2: Convert to fraction form
    21,297.80/29,391.17 = 11,738.03/x
  3. Step 3: Cross multiply
    21,297.80x = 29,391.17 × 11,738.03
  4. Step 4: Simplify right side
    21,297.80x = 344,994,571.12
  5. Step 5: Solve for x
    x = 344,994,571.12/21,297.80
  6. Step 6: Final answer
    x = 16,198.60

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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.