Home / 20,497.16-28,286.24-11,543.82

Finding the Fourth Proportional to 20,497.16, 28,286.24 and 11,543.82

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Solution

The fourth proportional to 20,497.16, 28,286.24 and 11,543.82 is: 15,930.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,497.16 : 28,286.24 = 11,543.82 : x
  2. Step 2: Convert to fraction form
    20,497.16/28,286.24 = 11,543.82/x
  3. Step 3: Cross multiply
    20,497.16x = 28,286.24 × 11,543.82
  4. Step 4: Simplify right side
    20,497.16x = 326,531,263.04
  5. Step 5: Solve for x
    x = 326,531,263.04/20,497.16
  6. Step 6: Final answer
    x = 15,930.56

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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.