Home / 20,906.94-31,360.26-5,112.03

Finding the Fourth Proportional to 20,906.94, 31,360.26 and 5,112.03

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Solution

The fourth proportional to 20,906.94, 31,360.26 and 5,112.03 is: 7,668.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,906.94 : 31,360.26 = 5,112.03 : x
  2. Step 2: Convert to fraction form
    20,906.94/31,360.26 = 5,112.03/x
  3. Step 3: Cross multiply
    20,906.94x = 31,360.26 × 5,112.03
  4. Step 4: Simplify right side
    20,906.94x = 160,314,589.93
  5. Step 5: Solve for x
    x = 160,314,589.93/20,906.94
  6. Step 6: Final answer
    x = 7,668.01

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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.