Home / 20,447.64-28,216.32-11,496.48

Finding the Fourth Proportional to 20,447.64, 28,216.32 and 11,496.48

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Solution

The fourth proportional to 20,447.64, 28,216.32 and 11,496.48 is: 15,864.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,447.64 : 28,216.32 = 11,496.48 : x
  2. Step 2: Convert to fraction form
    20,447.64/28,216.32 = 11,496.48/x
  3. Step 3: Cross multiply
    20,447.64x = 28,216.32 × 11,496.48
  4. Step 4: Simplify right side
    20,447.64x = 324,388,358.55
  5. Step 5: Solve for x
    x = 324,388,358.55/20,447.64
  6. Step 6: Final answer
    x = 15,864.34

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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.