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Finding the Fourth Proportional to 25,616, 35,350.08 and 13,840

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Solution

The fourth proportional to 25,616, 35,350.08 and 13,840 is: 19,099.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,616 : 35,350.08 = 13,840 : x
  2. Step 2: Convert to fraction form
    25,616/35,350.08 = 13,840/x
  3. Step 3: Cross multiply
    25,616x = 35,350.08 × 13,840
  4. Step 4: Simplify right side
    25,616x = 489,245,107.20
  5. Step 5: Solve for x
    x = 489,245,107.20/25,616
  6. Step 6: Final answer
    x = 19,099.20

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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.