Home / 20,708.37-31,067.15-7,560.71

Finding the Fourth Proportional to 20,708.37, 31,067.15 and 7,560.71

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Solution

The fourth proportional to 20,708.37, 31,067.15 and 7,560.71 is: 11,342.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,708.37 : 31,067.15 = 7,560.71 : x
  2. Step 2: Convert to fraction form
    20,708.37/31,067.15 = 7,560.71/x
  3. Step 3: Cross multiply
    20,708.37x = 31,067.15 × 7,560.71
  4. Step 4: Simplify right side
    20,708.37x = 234,889,518.54
  5. Step 5: Solve for x
    x = 234,889,518.54/20,708.37
  6. Step 6: Final answer
    x = 11,342.73

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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.