Home / 20,028.60-27,629.10-12,472.92

Finding the Fourth Proportional to 20,028.60, 27,629.10 and 12,472.92

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Solution

The fourth proportional to 20,028.60, 27,629.10 and 12,472.92 is: 17,206.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,028.60 : 27,629.10 = 12,472.92 : x
  2. Step 2: Convert to fraction form
    20,028.60/27,629.10 = 12,472.92/x
  3. Step 3: Cross multiply
    20,028.60x = 27,629.10 × 12,472.92
  4. Step 4: Simplify right side
    20,028.60x = 344,615,553.97
  5. Step 5: Solve for x
    x = 344,615,553.97/20,028.60
  6. Step 6: Final answer
    x = 17,206.17

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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.