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Finding the Fourth Proportional to 29,295, 40,429.26 and 18,119.16

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Solution

The fourth proportional to 29,295, 40,429.26 and 18,119.16 is: 25,005.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,295 : 40,429.26 = 18,119.16 : x
  2. Step 2: Convert to fraction form
    29,295/40,429.26 = 18,119.16/x
  3. Step 3: Cross multiply
    29,295x = 40,429.26 × 18,119.16
  4. Step 4: Simplify right side
    29,295x = 732,544,230.62
  5. Step 5: Solve for x
    x = 732,544,230.62/29,295
  6. Step 6: Final answer
    x = 25,005.78

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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.