Home / 28,999.40-43,515.82-15,672.42

Finding the Fourth Proportional to 28,999.40, 43,515.82 and 15,672.42

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Solution

The fourth proportional to 28,999.40, 43,515.82 and 15,672.42 is: 23,517.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,999.40 : 43,515.82 = 15,672.42 : x
  2. Step 2: Convert to fraction form
    28,999.40/43,515.82 = 15,672.42/x
  3. Step 3: Cross multiply
    28,999.40x = 43,515.82 × 15,672.42
  4. Step 4: Simplify right side
    28,999.40x = 681,998,207.68
  5. Step 5: Solve for x
    x = 681,998,207.68/28,999.40
  6. Step 6: Final answer
    x = 23,517.67

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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.