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Finding the Fourth Proportional to 30,119.52, 41,554.08 and 18,174

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Solution

The fourth proportional to 30,119.52, 41,554.08 and 18,174 is: 25,073.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,119.52 : 41,554.08 = 18,174 : x
  2. Step 2: Convert to fraction form
    30,119.52/41,554.08 = 18,174/x
  3. Step 3: Cross multiply
    30,119.52x = 41,554.08 × 18,174
  4. Step 4: Simplify right side
    30,119.52x = 755,203,849.92
  5. Step 5: Solve for x
    x = 755,203,849.92/30,119.52
  6. Step 6: Final answer
    x = 25,073.57

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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.