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Finding the Fourth Proportional to 25,078, 34,608.36 and 13,900.72

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Solution

The fourth proportional to 25,078, 34,608.36 and 13,900.72 is: 19,183.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,078 : 34,608.36 = 13,900.72 : x
  2. Step 2: Convert to fraction form
    25,078/34,608.36 = 13,900.72/x
  3. Step 3: Cross multiply
    25,078x = 34,608.36 × 13,900.72
  4. Step 4: Simplify right side
    25,078x = 481,081,122.02
  5. Step 5: Solve for x
    x = 481,081,122.02/25,078
  6. Step 6: Final answer
    x = 19,183.39

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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.