Home / 16,081.45-24,120.81-4,987.90

Finding the Fourth Proportional to 16,081.45, 24,120.81 and 4,987.90

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Solution

The fourth proportional to 16,081.45, 24,120.81 and 4,987.90 is: 7,481.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,081.45 : 24,120.81 = 4,987.90 : x
  2. Step 2: Convert to fraction form
    16,081.45/24,120.81 = 4,987.90/x
  3. Step 3: Cross multiply
    16,081.45x = 24,120.81 × 4,987.90
  4. Step 4: Simplify right side
    16,081.45x = 120,312,188.20
  5. Step 5: Solve for x
    x = 120,312,188.20/16,081.45
  6. Step 6: Final answer
    x = 7,481.43

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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.