Home / 22,726.20-33,906.75-20,231.40

Finding the Fourth Proportional to 22,726.20, 33,906.75 and 20,231.40

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Solution

The fourth proportional to 22,726.20, 33,906.75 and 20,231.40 is: 30,184.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,726.20 : 33,906.75 = 20,231.40 : x
  2. Step 2: Convert to fraction form
    22,726.20/33,906.75 = 20,231.40/x
  3. Step 3: Cross multiply
    22,726.20x = 33,906.75 × 20,231.40
  4. Step 4: Simplify right side
    22,726.20x = 685,981,021.95
  5. Step 5: Solve for x
    x = 685,981,021.95/22,726.20
  6. Step 6: Final answer
    x = 30,184.59

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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.