Home / 20,441.64-28,208.17-11,489.02

Finding the Fourth Proportional to 20,441.64, 28,208.17 and 11,489.02

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Solution

The fourth proportional to 20,441.64, 28,208.17 and 11,489.02 is: 15,854.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,441.64 : 28,208.17 = 11,489.02 : x
  2. Step 2: Convert to fraction form
    20,441.64/28,208.17 = 11,489.02/x
  3. Step 3: Cross multiply
    20,441.64x = 28,208.17 × 11,489.02
  4. Step 4: Simplify right side
    20,441.64x = 324,084,229.29
  5. Step 5: Solve for x
    x = 324,084,229.29/20,441.64
  6. Step 6: Final answer
    x = 15,854.12

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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.