Home / 27,616.05-38,110.38-15,516.78

Finding the Fourth Proportional to 27,616.05, 38,110.38 and 15,516.78

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Solution

The fourth proportional to 27,616.05, 38,110.38 and 15,516.78 is: 21,413.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,616.05 : 38,110.38 = 15,516.78 : x
  2. Step 2: Convert to fraction form
    27,616.05/38,110.38 = 15,516.78/x
  3. Step 3: Cross multiply
    27,616.05x = 38,110.38 × 15,516.78
  4. Step 4: Simplify right side
    27,616.05x = 591,350,382.18
  5. Step 5: Solve for x
    x = 591,350,382.18/27,616.05
  6. Step 6: Final answer
    x = 21,413.29

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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.