Home / 21,183.66-29,234.28-11,623.89

Finding the Fourth Proportional to 21,183.66, 29,234.28 and 11,623.89

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Solution

The fourth proportional to 21,183.66, 29,234.28 and 11,623.89 is: 16,041.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,183.66 : 29,234.28 = 11,623.89 : x
  2. Step 2: Convert to fraction form
    21,183.66/29,234.28 = 11,623.89/x
  3. Step 3: Cross multiply
    21,183.66x = 29,234.28 × 11,623.89
  4. Step 4: Simplify right side
    21,183.66x = 339,816,054.95
  5. Step 5: Solve for x
    x = 339,816,054.95/21,183.66
  6. Step 6: Final answer
    x = 16,041.42

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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.