Home / 31,452.24-47,178.36-8,078.68

Finding the Fourth Proportional to 31,452.24, 47,178.36 and 8,078.68

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Solution

The fourth proportional to 31,452.24, 47,178.36 and 8,078.68 is: 12,118.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,452.24 : 47,178.36 = 8,078.68 : x
  2. Step 2: Convert to fraction form
    31,452.24/47,178.36 = 8,078.68/x
  3. Step 3: Cross multiply
    31,452.24x = 47,178.36 × 8,078.68
  4. Step 4: Simplify right side
    31,452.24x = 381,138,873.36
  5. Step 5: Solve for x
    x = 381,138,873.36/31,452.24
  6. Step 6: Final answer
    x = 12,118.02

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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.