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Finding the Fourth Proportional to 17,388, 25,858.33 and 16,834.43

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Solution

The fourth proportional to 17,388, 25,858.33 and 16,834.43 is: 25,035.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,388 : 25,858.33 = 16,834.43 : x
  2. Step 2: Convert to fraction form
    17,388/25,858.33 = 16,834.43/x
  3. Step 3: Cross multiply
    17,388x = 25,858.33 × 16,834.43
  4. Step 4: Simplify right side
    17,388x = 435,310,268.86
  5. Step 5: Solve for x
    x = 435,310,268.86/17,388
  6. Step 6: Final answer
    x = 25,035.10

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.