Home / 20,073.78-27,715.37-17,942.47

Finding the Fourth Proportional to 20,073.78, 27,715.37 and 17,942.47

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Solution

The fourth proportional to 20,073.78, 27,715.37 and 17,942.47 is: 24,772.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,073.78 : 27,715.37 = 17,942.47 : x
  2. Step 2: Convert to fraction form
    20,073.78/27,715.37 = 17,942.47/x
  3. Step 3: Cross multiply
    20,073.78x = 27,715.37 × 17,942.47
  4. Step 4: Simplify right side
    20,073.78x = 497,282,194.76
  5. Step 5: Solve for x
    x = 497,282,194.76/20,073.78
  6. Step 6: Final answer
    x = 24,772.72

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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.