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Finding the Fourth Proportional to 19,679.65, 27,157.57 and 10,727.21

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Solution

The fourth proportional to 19,679.65, 27,157.57 and 10,727.21 is: 14,803.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,679.65 : 27,157.57 = 10,727.21 : x
  2. Step 2: Convert to fraction form
    19,679.65/27,157.57 = 10,727.21/x
  3. Step 3: Cross multiply
    19,679.65x = 27,157.57 × 10,727.21
  4. Step 4: Simplify right side
    19,679.65x = 291,324,997.56
  5. Step 5: Solve for x
    x = 291,324,997.56/19,679.65
  6. Step 6: Final answer
    x = 14,803.36

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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.