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Finding the Fourth Proportional to 17,144.49, 23,659.77 and 12,117.57

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Solution

The fourth proportional to 17,144.49, 23,659.77 and 12,117.57 is: 16,722.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,144.49 : 23,659.77 = 12,117.57 : x
  2. Step 2: Convert to fraction form
    17,144.49/23,659.77 = 12,117.57/x
  3. Step 3: Cross multiply
    17,144.49x = 23,659.77 × 12,117.57
  4. Step 4: Simplify right side
    17,144.49x = 286,698,919.16
  5. Step 5: Solve for x
    x = 286,698,919.16/17,144.49
  6. Step 6: Final answer
    x = 16,722.51

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.