Home / 21,297.92-29,391.33-11,738.15

Finding the Fourth Proportional to 21,297.92, 29,391.33 and 11,738.15

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Solution

The fourth proportional to 21,297.92, 29,391.33 and 11,738.15 is: 16,198.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,297.92 : 29,391.33 = 11,738.15 : x
  2. Step 2: Convert to fraction form
    21,297.92/29,391.33 = 11,738.15/x
  3. Step 3: Cross multiply
    21,297.92x = 29,391.33 × 11,738.15
  4. Step 4: Simplify right side
    21,297.92x = 344,999,913.72
  5. Step 5: Solve for x
    x = 344,999,913.72/21,297.92
  6. Step 6: Final answer
    x = 16,198.76

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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.