Home / 28,587.78-42,791.94-19,650.96

Finding the Fourth Proportional to 28,587.78, 42,791.94 and 19,650.96

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Solution

The fourth proportional to 28,587.78, 42,791.94 and 19,650.96 is: 29,414.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,587.78 : 42,791.94 = 19,650.96 : x
  2. Step 2: Convert to fraction form
    28,587.78/42,791.94 = 19,650.96/x
  3. Step 3: Cross multiply
    28,587.78x = 42,791.94 × 19,650.96
  4. Step 4: Simplify right side
    28,587.78x = 840,902,701.26
  5. Step 5: Solve for x
    x = 840,902,701.26/28,587.78
  6. Step 6: Final answer
    x = 29,414.76

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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.