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Finding the Fourth Proportional to 22,777.80, 34,166.70 and 19,278.60

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Solution

The fourth proportional to 22,777.80, 34,166.70 and 19,278.60 is: 28,917.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,777.80 : 34,166.70 = 19,278.60 : x
  2. Step 2: Convert to fraction form
    22,777.80/34,166.70 = 19,278.60/x
  3. Step 3: Cross multiply
    22,777.80x = 34,166.70 × 19,278.60
  4. Step 4: Simplify right side
    22,777.80x = 658,686,142.62
  5. Step 5: Solve for x
    x = 658,686,142.62/22,777.80
  6. Step 6: Final answer
    x = 28,917.90

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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.