Home / 28,394.82-42,620.67-11,764.62

Finding the Fourth Proportional to 28,394.82, 42,620.67 and 11,764.62

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Solution

The fourth proportional to 28,394.82, 42,620.67 and 11,764.62 is: 17,658.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,394.82 : 42,620.67 = 11,764.62 : x
  2. Step 2: Convert to fraction form
    28,394.82/42,620.67 = 11,764.62/x
  3. Step 3: Cross multiply
    28,394.82x = 42,620.67 × 11,764.62
  4. Step 4: Simplify right side
    28,394.82x = 501,415,986.70
  5. Step 5: Solve for x
    x = 501,415,986.70/28,394.82
  6. Step 6: Final answer
    x = 17,658.71

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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.