Home / 20,273.29-27,977.67-11,321.37

Finding the Fourth Proportional to 20,273.29, 27,977.67 and 11,321.37

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Solution

The fourth proportional to 20,273.29, 27,977.67 and 11,321.37 is: 15,623.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,273.29 : 27,977.67 = 11,321.37 : x
  2. Step 2: Convert to fraction form
    20,273.29/27,977.67 = 11,321.37/x
  3. Step 3: Cross multiply
    20,273.29x = 27,977.67 × 11,321.37
  4. Step 4: Simplify right side
    20,273.29x = 316,745,553.81
  5. Step 5: Solve for x
    x = 316,745,553.81/20,273.29
  6. Step 6: Final answer
    x = 15,623.79

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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.