Home / 20,250.31-27,944.07-12,696.34

Finding the Fourth Proportional to 20,250.31, 27,944.07 and 12,696.34

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Solution

The fourth proportional to 20,250.31, 27,944.07 and 12,696.34 is: 17,520.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,250.31 : 27,944.07 = 12,696.34 : x
  2. Step 2: Convert to fraction form
    20,250.31/27,944.07 = 12,696.34/x
  3. Step 3: Cross multiply
    20,250.31x = 27,944.07 × 12,696.34
  4. Step 4: Simplify right side
    20,250.31x = 354,787,413.70
  5. Step 5: Solve for x
    x = 354,787,413.70/20,250.31
  6. Step 6: Final answer
    x = 17,520.10

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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.