Home / 33,321.78-45,982.67-19,718.64

Finding the Fourth Proportional to 33,321.78, 45,982.67 and 19,718.64

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Solution

The fourth proportional to 33,321.78, 45,982.67 and 19,718.64 is: 27,210.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,321.78 : 45,982.67 = 19,718.64 : x
  2. Step 2: Convert to fraction form
    33,321.78/45,982.67 = 19,718.64/x
  3. Step 3: Cross multiply
    33,321.78x = 45,982.67 × 19,718.64
  4. Step 4: Simplify right side
    33,321.78x = 906,715,617.38
  5. Step 5: Solve for x
    x = 906,715,617.38/33,321.78
  6. Step 6: Final answer
    x = 27,210.90

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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.