Home / 31,970.97-47,956.62-8,276.86

Finding the Fourth Proportional to 31,970.97, 47,956.62 and 8,276.86

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Solution

The fourth proportional to 31,970.97, 47,956.62 and 8,276.86 is: 12,415.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,970.97 : 47,956.62 = 8,276.86 : x
  2. Step 2: Convert to fraction form
    31,970.97/47,956.62 = 8,276.86/x
  3. Step 3: Cross multiply
    31,970.97x = 47,956.62 × 8,276.86
  4. Step 4: Simplify right side
    31,970.97x = 396,929,979.62
  5. Step 5: Solve for x
    x = 396,929,979.62/31,970.97
  6. Step 6: Final answer
    x = 12,415.32

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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.