Home / 37,719.20-56,565.68-18,992

Finding the Fourth Proportional to 37,719.20, 56,565.68 and 18,992

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Solution

The fourth proportional to 37,719.20, 56,565.68 and 18,992 is: 28,481.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,719.20 : 56,565.68 = 18,992 : x
  2. Step 2: Convert to fraction form
    37,719.20/56,565.68 = 18,992/x
  3. Step 3: Cross multiply
    37,719.20x = 56,565.68 × 18,992
  4. Step 4: Simplify right side
    37,719.20x = 1,074,295,394.56
  5. Step 5: Solve for x
    x = 1,074,295,394.56/37,719.20
  6. Step 6: Final answer
    x = 28,481.39

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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.