Home / 20,213.35-27,896.48-11,262.31

Finding the Fourth Proportional to 20,213.35, 27,896.48 and 11,262.31

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Solution

The fourth proportional to 20,213.35, 27,896.48 and 11,262.31 is: 15,543.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,213.35 : 27,896.48 = 11,262.31 : x
  2. Step 2: Convert to fraction form
    20,213.35/27,896.48 = 11,262.31/x
  3. Step 3: Cross multiply
    20,213.35x = 27,896.48 × 11,262.31
  4. Step 4: Simplify right side
    20,213.35x = 314,178,749.36
  5. Step 5: Solve for x
    x = 314,178,749.36/20,213.35
  6. Step 6: Final answer
    x = 15,543.13

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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.