Home / 20,213.60-27,896.82-11,262.56

Finding the Fourth Proportional to 20,213.60, 27,896.82 and 11,262.56

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Solution

The fourth proportional to 20,213.60, 27,896.82 and 11,262.56 is: 15,543.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,213.60 : 27,896.82 = 11,262.56 : x
  2. Step 2: Convert to fraction form
    20,213.60/27,896.82 = 11,262.56/x
  3. Step 3: Cross multiply
    20,213.60x = 27,896.82 × 11,262.56
  4. Step 4: Simplify right side
    20,213.60x = 314,189,609.06
  5. Step 5: Solve for x
    x = 314,189,609.06/20,213.60
  6. Step 6: Final answer
    x = 15,543.48

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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.