Home / 31,739.92-47,612.30-8,366

Finding the Fourth Proportional to 31,739.92, 47,612.30 and 8,366

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Solution

The fourth proportional to 31,739.92, 47,612.30 and 8,366 is: 12,549.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,739.92 : 47,612.30 = 8,366 : x
  2. Step 2: Convert to fraction form
    31,739.92/47,612.30 = 8,366/x
  3. Step 3: Cross multiply
    31,739.92x = 47,612.30 × 8,366
  4. Step 4: Simplify right side
    31,739.92x = 398,324,501.80
  5. Step 5: Solve for x
    x = 398,324,501.80/31,739.92
  6. Step 6: Final answer
    x = 12,549.64

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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.