Home / 20,059.28-27,684.21-11,675.78

Finding the Fourth Proportional to 20,059.28, 27,684.21 and 11,675.78

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Solution

The fourth proportional to 20,059.28, 27,684.21 and 11,675.78 is: 16,113.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,059.28 : 27,684.21 = 11,675.78 : x
  2. Step 2: Convert to fraction form
    20,059.28/27,684.21 = 11,675.78/x
  3. Step 3: Cross multiply
    20,059.28x = 27,684.21 × 11,675.78
  4. Step 4: Simplify right side
    20,059.28x = 323,234,745.43
  5. Step 5: Solve for x
    x = 323,234,745.43/20,059.28
  6. Step 6: Final answer
    x = 16,113.98

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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.