Home / 19,605.38-29,399.87-7,757.31

Finding the Fourth Proportional to 19,605.38, 29,399.87 and 7,757.31

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Solution

The fourth proportional to 19,605.38, 29,399.87 and 7,757.31 is: 11,632.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,605.38 : 29,399.87 = 7,757.31 : x
  2. Step 2: Convert to fraction form
    19,605.38/29,399.87 = 7,757.31/x
  3. Step 3: Cross multiply
    19,605.38x = 29,399.87 × 7,757.31
  4. Step 4: Simplify right side
    19,605.38x = 228,063,924.94
  5. Step 5: Solve for x
    x = 228,063,924.94/19,605.38
  6. Step 6: Final answer
    x = 11,632.72

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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.