Home / 20,596.25-28,422.86-11,164.83

Finding the Fourth Proportional to 20,596.25, 28,422.86 and 11,164.83

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Solution

The fourth proportional to 20,596.25, 28,422.86 and 11,164.83 is: 15,407.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,596.25 : 28,422.86 = 11,164.83 : x
  2. Step 2: Convert to fraction form
    20,596.25/28,422.86 = 11,164.83/x
  3. Step 3: Cross multiply
    20,596.25x = 28,422.86 × 11,164.83
  4. Step 4: Simplify right side
    20,596.25x = 317,336,344.19
  5. Step 5: Solve for x
    x = 317,336,344.19/20,596.25
  6. Step 6: Final answer
    x = 15,407.49

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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.