Home / 19,767.72-29,651.82-6,620.13

Finding the Fourth Proportional to 19,767.72, 29,651.82 and 6,620.13

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Solution

The fourth proportional to 19,767.72, 29,651.82 and 6,620.13 is: 9,930.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,767.72 : 29,651.82 = 6,620.13 : x
  2. Step 2: Convert to fraction form
    19,767.72/29,651.82 = 6,620.13/x
  3. Step 3: Cross multiply
    19,767.72x = 29,651.82 × 6,620.13
  4. Step 4: Simplify right side
    19,767.72x = 196,298,903.14
  5. Step 5: Solve for x
    x = 196,298,903.14/19,767.72
  6. Step 6: Final answer
    x = 9,930.28

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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.