Home / 21,183.16-29,231.77-11,622.83

Finding the Fourth Proportional to 21,183.16, 29,231.77 and 11,622.83

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Solution

The fourth proportional to 21,183.16, 29,231.77 and 11,622.83 is: 16,038.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,183.16 : 29,231.77 = 11,622.83 : x
  2. Step 2: Convert to fraction form
    21,183.16/29,231.77 = 11,622.83/x
  3. Step 3: Cross multiply
    21,183.16x = 29,231.77 × 11,622.83
  4. Step 4: Simplify right side
    21,183.16x = 339,755,904.31
  5. Step 5: Solve for x
    x = 339,755,904.31/21,183.16
  6. Step 6: Final answer
    x = 16,038.96

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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.