Home / 21,190.92-29,243.26-11,759.48

Finding the Fourth Proportional to 21,190.92, 29,243.26 and 11,759.48

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Solution

The fourth proportional to 21,190.92, 29,243.26 and 11,759.48 is: 16,227.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,190.92 : 29,243.26 = 11,759.48 : x
  2. Step 2: Convert to fraction form
    21,190.92/29,243.26 = 11,759.48/x
  3. Step 3: Cross multiply
    21,190.92x = 29,243.26 × 11,759.48
  4. Step 4: Simplify right side
    21,190.92x = 343,885,509.25
  5. Step 5: Solve for x
    x = 343,885,509.25/21,190.92
  6. Step 6: Final answer
    x = 16,227.97

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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.