Home / 20,016.78-30,043.99-10,163.13

Finding the Fourth Proportional to 20,016.78, 30,043.99 and 10,163.13

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Solution

The fourth proportional to 20,016.78, 30,043.99 and 10,163.13 is: 15,254.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,016.78 : 30,043.99 = 10,163.13 : x
  2. Step 2: Convert to fraction form
    20,016.78/30,043.99 = 10,163.13/x
  3. Step 3: Cross multiply
    20,016.78x = 30,043.99 × 10,163.13
  4. Step 4: Simplify right side
    20,016.78x = 305,340,976.09
  5. Step 5: Solve for x
    x = 305,340,976.09/20,016.78
  6. Step 6: Final answer
    x = 15,254.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.