Home / 20,677.82-30,999.17-8,206.65

Finding the Fourth Proportional to 20,677.82, 30,999.17 and 8,206.65

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Solution

The fourth proportional to 20,677.82, 30,999.17 and 8,206.65 is: 12,303.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,677.82 : 30,999.17 = 8,206.65 : x
  2. Step 2: Convert to fraction form
    20,677.82/30,999.17 = 8,206.65/x
  3. Step 3: Cross multiply
    20,677.82x = 30,999.17 × 8,206.65
  4. Step 4: Simplify right side
    20,677.82x = 254,399,359.00
  5. Step 5: Solve for x
    x = 254,399,359.00/20,677.82
  6. Step 6: Final answer
    x = 12,303.01

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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.