Home / 31,840.32-47,757.60-8,465.88

Finding the Fourth Proportional to 31,840.32, 47,757.60 and 8,465.88

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Solution

The fourth proportional to 31,840.32, 47,757.60 and 8,465.88 is: 12,698.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,840.32 : 47,757.60 = 8,465.88 : x
  2. Step 2: Convert to fraction form
    31,840.32/47,757.60 = 8,465.88/x
  3. Step 3: Cross multiply
    31,840.32x = 47,757.60 × 8,465.88
  4. Step 4: Simplify right side
    31,840.32x = 404,310,110.69
  5. Step 5: Solve for x
    x = 404,310,110.69/31,840.32
  6. Step 6: Final answer
    x = 12,698.05

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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.