Home / 20,447.24-28,217.16-11,496.74

Finding the Fourth Proportional to 20,447.24, 28,217.16 and 11,496.74

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Solution

The fourth proportional to 20,447.24, 28,217.16 and 11,496.74 is: 15,865.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,447.24 : 28,217.16 = 11,496.74 : x
  2. Step 2: Convert to fraction form
    20,447.24/28,217.16 = 11,496.74/x
  3. Step 3: Cross multiply
    20,447.24x = 28,217.16 × 11,496.74
  4. Step 4: Simplify right side
    20,447.24x = 324,405,210.97
  5. Step 5: Solve for x
    x = 324,405,210.97/20,447.24
  6. Step 6: Final answer
    x = 15,865.48

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1.5x scale

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.