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Finding the Fourth Proportional to 26,893.39, 40,345.53 and 11,311

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Solution

The fourth proportional to 26,893.39, 40,345.53 and 11,311 is: 16,968.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,893.39 : 40,345.53 = 11,311 : x
  2. Step 2: Convert to fraction form
    26,893.39/40,345.53 = 11,311/x
  3. Step 3: Cross multiply
    26,893.39x = 40,345.53 × 11,311
  4. Step 4: Simplify right side
    26,893.39x = 456,348,289.83
  5. Step 5: Solve for x
    x = 456,348,289.83/26,893.39
  6. Step 6: Final answer
    x = 16,968.79

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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.