Home / 21,183.38-29,233.10-11,751.95

Finding the Fourth Proportional to 21,183.38, 29,233.10 and 11,751.95

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Solution

The fourth proportional to 21,183.38, 29,233.10 and 11,751.95 is: 16,217.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,183.38 : 29,233.10 = 11,751.95 : x
  2. Step 2: Convert to fraction form
    21,183.38/29,233.10 = 11,751.95/x
  3. Step 3: Cross multiply
    21,183.38x = 29,233.10 × 11,751.95
  4. Step 4: Simplify right side
    21,183.38x = 343,545,812.76
  5. Step 5: Solve for x
    x = 343,545,812.76/21,183.38
  6. Step 6: Final answer
    x = 16,217.70

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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.