Home / 19,728.74-27,227.19-11,233.62

Finding the Fourth Proportional to 19,728.74, 27,227.19 and 11,233.62

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Solution

The fourth proportional to 19,728.74, 27,227.19 and 11,233.62 is: 15,503.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,728.74 : 27,227.19 = 11,233.62 : x
  2. Step 2: Convert to fraction form
    19,728.74/27,227.19 = 11,233.62/x
  3. Step 3: Cross multiply
    19,728.74x = 27,227.19 × 11,233.62
  4. Step 4: Simplify right side
    19,728.74x = 305,859,906.13
  5. Step 5: Solve for x
    x = 305,859,906.13/19,728.74
  6. Step 6: Final answer
    x = 15,503.27

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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.