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Finding the Fourth Proportional to 26,689, 40,040.43 and 7,969.04

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Solution

The fourth proportional to 26,689, 40,040.43 and 7,969.04 is: 11,955.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,689 : 40,040.43 = 7,969.04 : x
  2. Step 2: Convert to fraction form
    26,689/40,040.43 = 7,969.04/x
  3. Step 3: Cross multiply
    26,689x = 40,040.43 × 7,969.04
  4. Step 4: Simplify right side
    26,689x = 319,083,788.29
  5. Step 5: Solve for x
    x = 319,083,788.29/26,689
  6. Step 6: Final answer
    x = 11,955.63

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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.