Home / 27,018.82-40,542.50-19,172.04

Finding the Fourth Proportional to 27,018.82, 40,542.50 and 19,172.04

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Solution

The fourth proportional to 27,018.82, 40,542.50 and 19,172.04 is: 28,768.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,018.82 : 40,542.50 = 19,172.04 : x
  2. Step 2: Convert to fraction form
    27,018.82/40,542.50 = 19,172.04/x
  3. Step 3: Cross multiply
    27,018.82x = 40,542.50 × 19,172.04
  4. Step 4: Simplify right side
    27,018.82x = 777,282,431.70
  5. Step 5: Solve for x
    x = 777,282,431.70/27,018.82
  6. Step 6: Final answer
    x = 28,768.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.