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Finding the Fourth Proportional to 17,298.48, 23,879.16 and 11,712.72

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Solution

The fourth proportional to 17,298.48, 23,879.16 and 11,712.72 is: 16,168.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,298.48 : 23,879.16 = 11,712.72 : x
  2. Step 2: Convert to fraction form
    17,298.48/23,879.16 = 11,712.72/x
  3. Step 3: Cross multiply
    17,298.48x = 23,879.16 × 11,712.72
  4. Step 4: Simplify right side
    17,298.48x = 279,689,914.92
  5. Step 5: Solve for x
    x = 279,689,914.92/17,298.48
  6. Step 6: Final answer
    x = 16,168.47

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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.