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Finding the Fourth Proportional to 17,940, 26,914.32 and 5,628

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Solution

The fourth proportional to 17,940, 26,914.32 and 5,628 is: 8,443.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,940 : 26,914.32 = 5,628 : x
  2. Step 2: Convert to fraction form
    17,940/26,914.32 = 5,628/x
  3. Step 3: Cross multiply
    17,940x = 26,914.32 × 5,628
  4. Step 4: Simplify right side
    17,940x = 151,473,792.96
  5. Step 5: Solve for x
    x = 151,473,792.96/17,940
  6. Step 6: Final answer
    x = 8,443.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.