Home / 20,178.39-27,829.60-17,911.39

Finding the Fourth Proportional to 20,178.39, 27,829.60 and 17,911.39

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Solution

The fourth proportional to 20,178.39, 27,829.60 and 17,911.39 is: 24,703.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,178.39 : 27,829.60 = 17,911.39 : x
  2. Step 2: Convert to fraction form
    20,178.39/27,829.60 = 17,911.39/x
  3. Step 3: Cross multiply
    20,178.39x = 27,829.60 × 17,911.39
  4. Step 4: Simplify right side
    20,178.39x = 498,466,819.14
  5. Step 5: Solve for x
    x = 498,466,819.14/20,178.39
  6. Step 6: Final answer
    x = 24,703.00

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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.