Home / 21,183.12-29,232.36-11,751.48

Finding the Fourth Proportional to 21,183.12, 29,232.36 and 11,751.48

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Solution

The fourth proportional to 21,183.12, 29,232.36 and 11,751.48 is: 16,216.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,183.12 : 29,232.36 = 11,751.48 : x
  2. Step 2: Convert to fraction form
    21,183.12/29,232.36 = 11,751.48/x
  3. Step 3: Cross multiply
    21,183.12x = 29,232.36 × 11,751.48
  4. Step 4: Simplify right side
    21,183.12x = 343,523,493.89
  5. Step 5: Solve for x
    x = 343,523,493.89/21,183.12
  6. Step 6: Final answer
    x = 16,216.85

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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.