Home / 28,308.24-38,997.85-19,794.43

Finding the Fourth Proportional to 28,308.24, 38,997.85 and 19,794.43

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Solution

The fourth proportional to 28,308.24, 38,997.85 and 19,794.43 is: 27,269.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,308.24 : 38,997.85 = 19,794.43 : x
  2. Step 2: Convert to fraction form
    28,308.24/38,997.85 = 19,794.43/x
  3. Step 3: Cross multiply
    28,308.24x = 38,997.85 × 19,794.43
  4. Step 4: Simplify right side
    28,308.24x = 771,940,211.98
  5. Step 5: Solve for x
    x = 771,940,211.98/28,308.24
  6. Step 6: Final answer
    x = 27,269.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.