Home / 21,183.99-29,237.72-12,230.25

Finding the Fourth Proportional to 21,183.99, 29,237.72 and 12,230.25

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Solution

The fourth proportional to 21,183.99, 29,237.72 and 12,230.25 is: 16,879.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,183.99 : 29,237.72 = 12,230.25 : x
  2. Step 2: Convert to fraction form
    21,183.99/29,237.72 = 12,230.25/x
  3. Step 3: Cross multiply
    21,183.99x = 29,237.72 × 12,230.25
  4. Step 4: Simplify right side
    21,183.99x = 357,584,563.88
  5. Step 5: Solve for x
    x = 357,584,563.88/21,183.99
  6. Step 6: Final answer
    x = 16,879.94

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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.