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Finding the Fourth Proportional to 39,153.70, 54,034.74 and 22,157.92

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Solution

The fourth proportional to 39,153.70, 54,034.74 and 22,157.92 is: 30,579.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,153.70 : 54,034.74 = 22,157.92 : x
  2. Step 2: Convert to fraction form
    39,153.70/54,034.74 = 22,157.92/x
  3. Step 3: Cross multiply
    39,153.70x = 54,034.74 × 22,157.92
  4. Step 4: Simplify right side
    39,153.70x = 1,197,297,446.14
  5. Step 5: Solve for x
    x = 1,197,297,446.14/39,153.70
  6. Step 6: Final answer
    x = 30,579.42

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.