Home / 37,418.20-51,645.99-21,511.90

Finding the Fourth Proportional to 37,418.20, 51,645.99 and 21,511.90

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Solution

The fourth proportional to 37,418.20, 51,645.99 and 21,511.90 is: 29,691.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,418.20 : 51,645.99 = 21,511.90 : x
  2. Step 2: Convert to fraction form
    37,418.20/51,645.99 = 21,511.90/x
  3. Step 3: Cross multiply
    37,418.20x = 51,645.99 × 21,511.90
  4. Step 4: Simplify right side
    37,418.20x = 1,111,003,372.28
  5. Step 5: Solve for x
    x = 1,111,003,372.28/37,418.20
  6. Step 6: Final answer
    x = 29,691.52

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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.