Home / 21,183.69-29,232.33-12,230.66

Finding the Fourth Proportional to 21,183.69, 29,232.33 and 12,230.66

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Solution

The fourth proportional to 21,183.69, 29,232.33 and 12,230.66 is: 16,877.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,183.69 : 29,232.33 = 12,230.66 : x
  2. Step 2: Convert to fraction form
    21,183.69/29,232.33 = 12,230.66/x
  3. Step 3: Cross multiply
    21,183.69x = 29,232.33 × 12,230.66
  4. Step 4: Simplify right side
    21,183.69x = 357,530,716.45
  5. Step 5: Solve for x
    x = 357,530,716.45/21,183.69
  6. Step 6: Final answer
    x = 16,877.64

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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.