Home / 20,893.52-31,310.81-11,537.75

Finding the Fourth Proportional to 20,893.52, 31,310.81 and 11,537.75

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Solution

The fourth proportional to 20,893.52, 31,310.81 and 11,537.75 is: 17,290.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,893.52 : 31,310.81 = 11,537.75 : x
  2. Step 2: Convert to fraction form
    20,893.52/31,310.81 = 11,537.75/x
  3. Step 3: Cross multiply
    20,893.52x = 31,310.81 × 11,537.75
  4. Step 4: Simplify right side
    20,893.52x = 361,256,190.96
  5. Step 5: Solve for x
    x = 361,256,190.96/20,893.52
  6. Step 6: Final answer
    x = 17,290.35

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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.