Home / 21,183.24-29,231.88-11,622.91

Finding the Fourth Proportional to 21,183.24, 29,231.88 and 11,622.91

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Solution

The fourth proportional to 21,183.24, 29,231.88 and 11,622.91 is: 16,039.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,183.24 : 29,231.88 = 11,622.91 : x
  2. Step 2: Convert to fraction form
    21,183.24/29,231.88 = 11,622.91/x
  3. Step 3: Cross multiply
    21,183.24x = 29,231.88 × 11,622.91
  4. Step 4: Simplify right side
    21,183.24x = 339,759,510.37
  5. Step 5: Solve for x
    x = 339,759,510.37/21,183.24
  6. Step 6: Final answer
    x = 16,039.07

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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.