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Finding the Fourth Proportional to 20,054.79, 30,092.72 and 11,751.08

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Solution

The fourth proportional to 20,054.79, 30,092.72 and 11,751.08 is: 17,632.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,054.79 : 30,092.72 = 11,751.08 : x
  2. Step 2: Convert to fraction form
    20,054.79/30,092.72 = 11,751.08/x
  3. Step 3: Cross multiply
    20,054.79x = 30,092.72 × 11,751.08
  4. Step 4: Simplify right side
    20,054.79x = 353,621,750.92
  5. Step 5: Solve for x
    x = 353,621,750.92/20,054.79
  6. Step 6: Final answer
    x = 17,632.78

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