Home / 20,447.50-28,217.31-11,496.52

Finding the Fourth Proportional to 20,447.50, 28,217.31 and 11,496.52

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Solution

The fourth proportional to 20,447.50, 28,217.31 and 11,496.52 is: 15,865.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,447.50 : 28,217.31 = 11,496.52 : x
  2. Step 2: Convert to fraction form
    20,447.50/28,217.31 = 11,496.52/x
  3. Step 3: Cross multiply
    20,447.50x = 28,217.31 × 11,496.52
  4. Step 4: Simplify right side
    20,447.50x = 324,400,868.76
  5. Step 5: Solve for x
    x = 324,400,868.76/20,447.50
  6. Step 6: Final answer
    x = 15,865.06

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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.