Home / 28,725.54-43,087.99-11,207.67

Finding the Fourth Proportional to 28,725.54, 43,087.99 and 11,207.67

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Solution

The fourth proportional to 28,725.54, 43,087.99 and 11,207.67 is: 16,811.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,725.54 : 43,087.99 = 11,207.67 : x
  2. Step 2: Convert to fraction form
    28,725.54/43,087.99 = 11,207.67/x
  3. Step 3: Cross multiply
    28,725.54x = 43,087.99 × 11,207.67
  4. Step 4: Simplify right side
    28,725.54x = 482,915,972.88
  5. Step 5: Solve for x
    x = 482,915,972.88/28,725.54
  6. Step 6: Final answer
    x = 16,811.38

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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.