Home / 20,273.72-27,977.77-11,321.19

Finding the Fourth Proportional to 20,273.72, 27,977.77 and 11,321.19

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Solution

The fourth proportional to 20,273.72, 27,977.77 and 11,321.19 is: 15,623.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,273.72 : 27,977.77 = 11,321.19 : x
  2. Step 2: Convert to fraction form
    20,273.72/27,977.77 = 11,321.19/x
  3. Step 3: Cross multiply
    20,273.72x = 27,977.77 × 11,321.19
  4. Step 4: Simplify right side
    20,273.72x = 316,741,593.34
  5. Step 5: Solve for x
    x = 316,741,593.34/20,273.72
  6. Step 6: Final answer
    x = 15,623.26

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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.