Home / 21,284.71-31,922.94-8,133.97

Finding the Fourth Proportional to 21,284.71, 31,922.94 and 8,133.97

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Solution

The fourth proportional to 21,284.71, 31,922.94 and 8,133.97 is: 12,199.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,284.71 : 31,922.94 = 8,133.97 : x
  2. Step 2: Convert to fraction form
    21,284.71/31,922.94 = 8,133.97/x
  3. Step 3: Cross multiply
    21,284.71x = 31,922.94 × 8,133.97
  4. Step 4: Simplify right side
    21,284.71x = 259,660,236.27
  5. Step 5: Solve for x
    x = 259,660,236.27/21,284.71
  6. Step 6: Final answer
    x = 12,199.38

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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.