Home / 21,183.72-29,233.38-11,752.32

Finding the Fourth Proportional to 21,183.72, 29,233.38 and 11,752.32

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Solution

The fourth proportional to 21,183.72, 29,233.38 and 11,752.32 is: 16,218.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,183.72 : 29,233.38 = 11,752.32 : x
  2. Step 2: Convert to fraction form
    21,183.72/29,233.38 = 11,752.32/x
  3. Step 3: Cross multiply
    21,183.72x = 29,233.38 × 11,752.32
  4. Step 4: Simplify right side
    21,183.72x = 343,560,036.44
  5. Step 5: Solve for x
    x = 343,560,036.44/21,183.72
  6. Step 6: Final answer
    x = 16,218.12

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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.