Home / 20,266.71-27,977.18-11,883.75

Finding the Fourth Proportional to 20,266.71, 27,977.18 and 11,883.75

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Solution

The fourth proportional to 20,266.71, 27,977.18 and 11,883.75 is: 16,404.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,266.71 : 27,977.18 = 11,883.75 : x
  2. Step 2: Convert to fraction form
    20,266.71/27,977.18 = 11,883.75/x
  3. Step 3: Cross multiply
    20,266.71x = 27,977.18 × 11,883.75
  4. Step 4: Simplify right side
    20,266.71x = 332,473,753.41
  5. Step 5: Solve for x
    x = 332,473,753.41/20,266.71
  6. Step 6: Final answer
    x = 16,404.92

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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.