Home / 21,297.72-29,391.05-11,737.95

Finding the Fourth Proportional to 21,297.72, 29,391.05 and 11,737.95

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Solution

The fourth proportional to 21,297.72, 29,391.05 and 11,737.95 is: 16,198.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,297.72 : 29,391.05 = 11,737.95 : x
  2. Step 2: Convert to fraction form
    21,297.72/29,391.05 = 11,737.95/x
  3. Step 3: Cross multiply
    21,297.72x = 29,391.05 × 11,737.95
  4. Step 4: Simplify right side
    21,297.72x = 344,990,556.00
  5. Step 5: Solve for x
    x = 344,990,556.00/21,297.72
  6. Step 6: Final answer
    x = 16,198.47

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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.