Home / 31,970.32-47,955.66-8,277.88

Finding the Fourth Proportional to 31,970.32, 47,955.66 and 8,277.88

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Solution

The fourth proportional to 31,970.32, 47,955.66 and 8,277.88 is: 12,416.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,970.32 : 47,955.66 = 8,277.88 : x
  2. Step 2: Convert to fraction form
    31,970.32/47,955.66 = 8,277.88/x
  3. Step 3: Cross multiply
    31,970.32x = 47,955.66 × 8,277.88
  4. Step 4: Simplify right side
    31,970.32x = 396,971,198.80
  5. Step 5: Solve for x
    x = 396,971,198.80/31,970.32
  6. Step 6: Final answer
    x = 12,416.87

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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.