Home / 20,262.38-27,966.75-11,881.58

Finding the Fourth Proportional to 20,262.38, 27,966.75 and 11,881.58

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Solution

The fourth proportional to 20,262.38, 27,966.75 and 11,881.58 is: 16,399.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,262.38 : 27,966.75 = 11,881.58 : x
  2. Step 2: Convert to fraction form
    20,262.38/27,966.75 = 11,881.58/x
  3. Step 3: Cross multiply
    20,262.38x = 27,966.75 × 11,881.58
  4. Step 4: Simplify right side
    20,262.38x = 332,289,177.47
  5. Step 5: Solve for x
    x = 332,289,177.47/20,262.38
  6. Step 6: Final answer
    x = 16,399.32

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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.