Home / 23,220.80-34,661.20-19,954.88

Finding the Fourth Proportional to 23,220.80, 34,661.20 and 19,954.88

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Solution

The fourth proportional to 23,220.80, 34,661.20 and 19,954.88 is: 29,786.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,220.80 : 34,661.20 = 19,954.88 : x
  2. Step 2: Convert to fraction form
    23,220.80/34,661.20 = 19,954.88/x
  3. Step 3: Cross multiply
    23,220.80x = 34,661.20 × 19,954.88
  4. Step 4: Simplify right side
    23,220.80x = 691,660,086.66
  5. Step 5: Solve for x
    x = 691,660,086.66/23,220.80
  6. Step 6: Final answer
    x = 29,786.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.