Home / 20,042.72-27,659.37-11,090.82

Finding the Fourth Proportional to 20,042.72, 27,659.37 and 11,090.82

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Solution

The fourth proportional to 20,042.72, 27,659.37 and 11,090.82 is: 15,305.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,042.72 : 27,659.37 = 11,090.82 : x
  2. Step 2: Convert to fraction form
    20,042.72/27,659.37 = 11,090.82/x
  3. Step 3: Cross multiply
    20,042.72x = 27,659.37 × 11,090.82
  4. Step 4: Simplify right side
    20,042.72x = 306,765,239.30
  5. Step 5: Solve for x
    x = 306,765,239.30/20,042.72
  6. Step 6: Final answer
    x = 15,305.57

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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.