Home / 20,857.94-31,286.92-5,062.99

Finding the Fourth Proportional to 20,857.94, 31,286.92 and 5,062.99

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Solution

The fourth proportional to 20,857.94, 31,286.92 and 5,062.99 is: 7,594.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,857.94 : 31,286.92 = 5,062.99 : x
  2. Step 2: Convert to fraction form
    20,857.94/31,286.92 = 5,062.99/x
  3. Step 3: Cross multiply
    20,857.94x = 31,286.92 × 5,062.99
  4. Step 4: Simplify right side
    20,857.94x = 158,405,326.13
  5. Step 5: Solve for x
    x = 158,405,326.13/20,857.94
  6. Step 6: Final answer
    x = 7,594.49

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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.