Home / 20,711.94-31,067.40-6,672.94

Finding the Fourth Proportional to 20,711.94, 31,067.40 and 6,672.94

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Solution

The fourth proportional to 20,711.94, 31,067.40 and 6,672.94 is: 10,009.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,711.94 : 31,067.40 = 6,672.94 : x
  2. Step 2: Convert to fraction form
    20,711.94/31,067.40 = 6,672.94/x
  3. Step 3: Cross multiply
    20,711.94x = 31,067.40 × 6,672.94
  4. Step 4: Simplify right side
    20,711.94x = 207,310,896.16
  5. Step 5: Solve for x
    x = 207,310,896.16/20,711.94
  6. Step 6: Final answer
    x = 10,009.25

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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.