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Finding the Fourth Proportional to 20,601.73, 30,902.60 and 7,451.03

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Solution

The fourth proportional to 20,601.73, 30,902.60 and 7,451.03 is: 11,176.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,601.73 : 30,902.60 = 7,451.03 : x
  2. Step 2: Convert to fraction form
    20,601.73/30,902.60 = 7,451.03/x
  3. Step 3: Cross multiply
    20,601.73x = 30,902.60 × 7,451.03
  4. Step 4: Simplify right side
    20,601.73x = 230,256,079.82
  5. Step 5: Solve for x
    x = 230,256,079.82/20,601.73
  6. Step 6: Final answer
    x = 11,176.54

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.