Home / 20,132.62-27,783.21-11,747.50

Finding the Fourth Proportional to 20,132.62, 27,783.21 and 11,747.50

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Solution

The fourth proportional to 20,132.62, 27,783.21 and 11,747.50 is: 16,211.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,132.62 : 27,783.21 = 11,747.50 : x
  2. Step 2: Convert to fraction form
    20,132.62/27,783.21 = 11,747.50/x
  3. Step 3: Cross multiply
    20,132.62x = 27,783.21 × 11,747.50
  4. Step 4: Simplify right side
    20,132.62x = 326,383,259.48
  5. Step 5: Solve for x
    x = 326,383,259.48/20,132.62
  6. Step 6: Final answer
    x = 16,211.66

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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.