Home / 20,076.96-30,059.82-15,131.64

Finding the Fourth Proportional to 20,076.96, 30,059.82 and 15,131.64

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Solution

The fourth proportional to 20,076.96, 30,059.82 and 15,131.64 is: 22,655.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,076.96 : 30,059.82 = 15,131.64 : x
  2. Step 2: Convert to fraction form
    20,076.96/30,059.82 = 15,131.64/x
  3. Step 3: Cross multiply
    20,076.96x = 30,059.82 × 15,131.64
  4. Step 4: Simplify right side
    20,076.96x = 454,854,374.70
  5. Step 5: Solve for x
    x = 454,854,374.70/20,076.96
  6. Step 6: Final answer
    x = 22,655.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.