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Finding the Fourth Proportional to 34,855.10, 48,100.10 and 18,939.56

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Solution

The fourth proportional to 34,855.10, 48,100.10 and 18,939.56 is: 26,136.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,855.10 : 48,100.10 = 18,939.56 : x
  2. Step 2: Convert to fraction form
    34,855.10/48,100.10 = 18,939.56/x
  3. Step 3: Cross multiply
    34,855.10x = 48,100.10 × 18,939.56
  4. Step 4: Simplify right side
    34,855.10x = 910,994,729.96
  5. Step 5: Solve for x
    x = 910,994,729.96/34,855.10
  6. Step 6: Final answer
    x = 26,136.63

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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.