Home / 18,376.50-27,567.18-15,489.66

Finding the Fourth Proportional to 18,376.50, 27,567.18 and 15,489.66

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Solution

The fourth proportional to 18,376.50, 27,567.18 and 15,489.66 is: 23,236.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,376.50 : 27,567.18 = 15,489.66 : x
  2. Step 2: Convert to fraction form
    18,376.50/27,567.18 = 15,489.66/x
  3. Step 3: Cross multiply
    18,376.50x = 27,567.18 × 15,489.66
  4. Step 4: Simplify right side
    18,376.50x = 427,006,245.36
  5. Step 5: Solve for x
    x = 427,006,245.36/18,376.50
  6. Step 6: Final answer
    x = 23,236.54

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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.