Home / 23,170.50-31,976.67-13,099.87

Finding the Fourth Proportional to 23,170.50, 31,976.67 and 13,099.87

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Solution

The fourth proportional to 23,170.50, 31,976.67 and 13,099.87 is: 18,078.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,170.50 : 31,976.67 = 13,099.87 : x
  2. Step 2: Convert to fraction form
    23,170.50/31,976.67 = 13,099.87/x
  3. Step 3: Cross multiply
    23,170.50x = 31,976.67 × 13,099.87
  4. Step 4: Simplify right side
    23,170.50x = 418,890,220.03
  5. Step 5: Solve for x
    x = 418,890,220.03/23,170.50
  6. Step 6: Final answer
    x = 18,078.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.