Home / 20,877.92-31,322.08-6,086.97

Finding the Fourth Proportional to 20,877.92, 31,322.08 and 6,086.97

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Solution

The fourth proportional to 20,877.92, 31,322.08 and 6,086.97 is: 9,131.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,877.92 : 31,322.08 = 6,086.97 : x
  2. Step 2: Convert to fraction form
    20,877.92/31,322.08 = 6,086.97/x
  3. Step 3: Cross multiply
    20,877.92x = 31,322.08 × 6,086.97
  4. Step 4: Simplify right side
    20,877.92x = 190,656,546.08
  5. Step 5: Solve for x
    x = 190,656,546.08/20,877.92
  6. Step 6: Final answer
    x = 9,131.97

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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.