Home / 20,684.66-28,544.70-11,253.26

Finding the Fourth Proportional to 20,684.66, 28,544.70 and 11,253.26

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Solution

The fourth proportional to 20,684.66, 28,544.70 and 11,253.26 is: 15,529.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,684.66 : 28,544.70 = 11,253.26 : x
  2. Step 2: Convert to fraction form
    20,684.66/28,544.70 = 11,253.26/x
  3. Step 3: Cross multiply
    20,684.66x = 28,544.70 × 11,253.26
  4. Step 4: Simplify right side
    20,684.66x = 321,220,930.72
  5. Step 5: Solve for x
    x = 321,220,930.72/20,684.66
  6. Step 6: Final answer
    x = 15,529.43

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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.