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Finding the Fourth Proportional to 26,291.31, 36,263.97 and 15,672.75

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Solution

The fourth proportional to 26,291.31, 36,263.97 and 15,672.75 is: 21,617.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,291.31 : 36,263.97 = 15,672.75 : x
  2. Step 2: Convert to fraction form
    26,291.31/36,263.97 = 15,672.75/x
  3. Step 3: Cross multiply
    26,291.31x = 36,263.97 × 15,672.75
  4. Step 4: Simplify right side
    26,291.31x = 568,356,135.82
  5. Step 5: Solve for x
    x = 568,356,135.82/26,291.31
  6. Step 6: Final answer
    x = 21,617.64

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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.