Home / 38,906.55-53,690.33-21,910.73

Finding the Fourth Proportional to 38,906.55, 53,690.33 and 21,910.73

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Solution

The fourth proportional to 38,906.55, 53,690.33 and 21,910.73 is: 30,236.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,906.55 : 53,690.33 = 21,910.73 : x
  2. Step 2: Convert to fraction form
    38,906.55/53,690.33 = 21,910.73/x
  3. Step 3: Cross multiply
    38,906.55x = 53,690.33 × 21,910.73
  4. Step 4: Simplify right side
    38,906.55x = 1,176,394,110.57
  5. Step 5: Solve for x
    x = 1,176,394,110.57/38,906.55
  6. Step 6: Final answer
    x = 30,236.40

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Double scale
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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.