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Finding the Fourth Proportional to 26,645.68, 36,772.26 and 15,318.85

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Solution

The fourth proportional to 26,645.68, 36,772.26 and 15,318.85 is: 21,140.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,645.68 : 36,772.26 = 15,318.85 : x
  2. Step 2: Convert to fraction form
    26,645.68/36,772.26 = 15,318.85/x
  3. Step 3: Cross multiply
    26,645.68x = 36,772.26 × 15,318.85
  4. Step 4: Simplify right side
    26,645.68x = 563,308,735.10
  5. Step 5: Solve for x
    x = 563,308,735.10/26,645.68
  6. Step 6: Final answer
    x = 21,140.72

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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.