Home / 25,311.60-37,979.13-11,078.20

Finding the Fourth Proportional to 25,311.60, 37,979.13 and 11,078.20

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Solution

The fourth proportional to 25,311.60, 37,979.13 and 11,078.20 is: 16,622.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,311.60 : 37,979.13 = 11,078.20 : x
  2. Step 2: Convert to fraction form
    25,311.60/37,979.13 = 11,078.20/x
  3. Step 3: Cross multiply
    25,311.60x = 37,979.13 × 11,078.20
  4. Step 4: Simplify right side
    25,311.60x = 420,740,486.98
  5. Step 5: Solve for x
    x = 420,740,486.98/25,311.60
  6. Step 6: Final answer
    x = 16,622.44

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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.