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Finding the Fourth Proportional to 26,696.40, 40,040.40 and 16,805.40

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Solution

The fourth proportional to 26,696.40, 40,040.40 and 16,805.40 is: 25,205.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,696.40 : 40,040.40 = 16,805.40 : x
  2. Step 2: Convert to fraction form
    26,696.40/40,040.40 = 16,805.40/x
  3. Step 3: Cross multiply
    26,696.40x = 40,040.40 × 16,805.40
  4. Step 4: Simplify right side
    26,696.40x = 672,894,938.16
  5. Step 5: Solve for x
    x = 672,894,938.16/26,696.40
  6. Step 6: Final answer
    x = 25,205.46

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