Home / 21,183.76-29,234.72-11,752.08

Finding the Fourth Proportional to 21,183.76, 29,234.72 and 11,752.08

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Solution

The fourth proportional to 21,183.76, 29,234.72 and 11,752.08 is: 16,218.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,183.76 : 29,234.72 = 11,752.08 : x
  2. Step 2: Convert to fraction form
    21,183.76/29,234.72 = 11,752.08/x
  3. Step 3: Cross multiply
    21,183.76x = 29,234.72 × 11,752.08
  4. Step 4: Simplify right side
    21,183.76x = 343,568,768.22
  5. Step 5: Solve for x
    x = 343,568,768.22/21,183.76
  6. Step 6: Final answer
    x = 16,218.50

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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.