Home / 31,861.54-47,773.32-12,141.64

Finding the Fourth Proportional to 31,861.54, 47,773.32 and 12,141.64

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Solution

The fourth proportional to 31,861.54, 47,773.32 and 12,141.64 is: 18,205.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,861.54 : 47,773.32 = 12,141.64 : x
  2. Step 2: Convert to fraction form
    31,861.54/47,773.32 = 12,141.64/x
  3. Step 3: Cross multiply
    31,861.54x = 47,773.32 × 12,141.64
  4. Step 4: Simplify right side
    31,861.54x = 580,046,453.04
  5. Step 5: Solve for x
    x = 580,046,453.04/31,861.54
  6. Step 6: Final answer
    x = 18,205.22

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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.