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Finding the Fourth Proportional to 22,110.68, 30,502.42 and 13,153.16

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Solution

The fourth proportional to 22,110.68, 30,502.42 and 13,153.16 is: 18,145.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,110.68 : 30,502.42 = 13,153.16 : x
  2. Step 2: Convert to fraction form
    22,110.68/30,502.42 = 13,153.16/x
  3. Step 3: Cross multiply
    22,110.68x = 30,502.42 × 13,153.16
  4. Step 4: Simplify right side
    22,110.68x = 401,203,210.65
  5. Step 5: Solve for x
    x = 401,203,210.65/22,110.68
  6. Step 6: Final answer
    x = 18,145.22

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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.