Home / 20,707.97-31,049.24-10,164.60

Finding the Fourth Proportional to 20,707.97, 31,049.24 and 10,164.60

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Solution

The fourth proportional to 20,707.97, 31,049.24 and 10,164.60 is: 15,240.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,707.97 : 31,049.24 = 10,164.60 : x
  2. Step 2: Convert to fraction form
    20,707.97/31,049.24 = 10,164.60/x
  3. Step 3: Cross multiply
    20,707.97x = 31,049.24 × 10,164.60
  4. Step 4: Simplify right side
    20,707.97x = 315,603,054.08
  5. Step 5: Solve for x
    x = 315,603,054.08/20,707.97
  6. Step 6: Final answer
    x = 15,240.66

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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.