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Finding the Fourth Proportional to 26,676, 36,812.88 and 15,504.48

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Solution

The fourth proportional to 26,676, 36,812.88 and 15,504.48 is: 21,396.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,676 : 36,812.88 = 15,504.48 : x
  2. Step 2: Convert to fraction form
    26,676/36,812.88 = 15,504.48/x
  3. Step 3: Cross multiply
    26,676x = 36,812.88 × 15,504.48
  4. Step 4: Simplify right side
    26,676x = 570,764,561.70
  5. Step 5: Solve for x
    x = 570,764,561.70/26,676
  6. Step 6: Final answer
    x = 21,396.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.