Home / 19,728.09-27,223.66-11,232.29

Finding the Fourth Proportional to 19,728.09, 27,223.66 and 11,232.29

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Solution

The fourth proportional to 19,728.09, 27,223.66 and 11,232.29 is: 15,499.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,728.09 : 27,223.66 = 11,232.29 : x
  2. Step 2: Convert to fraction form
    19,728.09/27,223.66 = 11,232.29/x
  3. Step 3: Cross multiply
    19,728.09x = 27,223.66 × 11,232.29
  4. Step 4: Simplify right side
    19,728.09x = 305,783,879.78
  5. Step 5: Solve for x
    x = 305,783,879.78/19,728.09
  6. Step 6: Final answer
    x = 15,499.92

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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.