Home / 27,501.82-37,912.68-20,321.17

Finding the Fourth Proportional to 27,501.82, 37,912.68 and 20,321.17

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Solution

The fourth proportional to 27,501.82, 37,912.68 and 20,321.17 is: 28,013.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,501.82 : 37,912.68 = 20,321.17 : x
  2. Step 2: Convert to fraction form
    27,501.82/37,912.68 = 20,321.17/x
  3. Step 3: Cross multiply
    27,501.82x = 37,912.68 × 20,321.17
  4. Step 4: Simplify right side
    27,501.82x = 770,430,015.44
  5. Step 5: Solve for x
    x = 770,430,015.44/27,501.82
  6. Step 6: Final answer
    x = 28,013.78

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1.5x scale

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.