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Finding the Fourth Proportional to 21,674.56, 29,910.93 and 11,738.56

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Solution

The fourth proportional to 21,674.56, 29,910.93 and 11,738.56 is: 16,199.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,674.56 : 29,910.93 = 11,738.56 : x
  2. Step 2: Convert to fraction form
    21,674.56/29,910.93 = 11,738.56/x
  3. Step 3: Cross multiply
    21,674.56x = 29,910.93 × 11,738.56
  4. Step 4: Simplify right side
    21,674.56x = 351,111,246.46
  5. Step 5: Solve for x
    x = 351,111,246.46/21,674.56
  6. Step 6: Final answer
    x = 16,199.23

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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.