Home / 20,166.69-30,250.31-7,687.38

Finding the Fourth Proportional to 20,166.69, 30,250.31 and 7,687.38

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Solution

The fourth proportional to 20,166.69, 30,250.31 and 7,687.38 is: 11,531.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,166.69 : 30,250.31 = 7,687.38 : x
  2. Step 2: Convert to fraction form
    20,166.69/30,250.31 = 7,687.38/x
  3. Step 3: Cross multiply
    20,166.69x = 30,250.31 × 7,687.38
  4. Step 4: Simplify right side
    20,166.69x = 232,545,589.65
  5. Step 5: Solve for x
    x = 232,545,589.65/20,166.69
  6. Step 6: Final answer
    x = 11,531.17

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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.