Home / 21,183.18-29,233.05-11,622.45

Finding the Fourth Proportional to 21,183.18, 29,233.05 and 11,622.45

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Solution

The fourth proportional to 21,183.18, 29,233.05 and 11,622.45 is: 16,039.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,183.18 : 29,233.05 = 11,622.45 : x
  2. Step 2: Convert to fraction form
    21,183.18/29,233.05 = 11,622.45/x
  3. Step 3: Cross multiply
    21,183.18x = 29,233.05 × 11,622.45
  4. Step 4: Simplify right side
    21,183.18x = 339,759,661.97
  5. Step 5: Solve for x
    x = 339,759,661.97/21,183.18
  6. Step 6: Final answer
    x = 16,039.12

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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.