Home / 27,863.10-38,413.11-19,891.47

Finding the Fourth Proportional to 27,863.10, 38,413.11 and 19,891.47

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Solution

The fourth proportional to 27,863.10, 38,413.11 and 19,891.47 is: 27,423.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,863.10 : 38,413.11 = 19,891.47 : x
  2. Step 2: Convert to fraction form
    27,863.10/38,413.11 = 19,891.47/x
  3. Step 3: Cross multiply
    27,863.10x = 38,413.11 × 19,891.47
  4. Step 4: Simplify right side
    27,863.10x = 764,093,225.17
  5. Step 5: Solve for x
    x = 764,093,225.17/27,863.10
  6. Step 6: Final answer
    x = 27,423.12

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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.