Home / 20,660.49-30,992.67-6,620.94

Finding the Fourth Proportional to 20,660.49, 30,992.67 and 6,620.94

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Solution

The fourth proportional to 20,660.49, 30,992.67 and 6,620.94 is: 9,932.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,660.49 : 30,992.67 = 6,620.94 : x
  2. Step 2: Convert to fraction form
    20,660.49/30,992.67 = 6,620.94/x
  3. Step 3: Cross multiply
    20,660.49x = 30,992.67 × 6,620.94
  4. Step 4: Simplify right side
    20,660.49x = 205,200,608.51
  5. Step 5: Solve for x
    x = 205,200,608.51/20,660.49
  6. Step 6: Final answer
    x = 9,932.03

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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.