Home / 20,562.76-28,377.39-11,611.25

Finding the Fourth Proportional to 20,562.76, 28,377.39 and 11,611.25

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Solution

The fourth proportional to 20,562.76, 28,377.39 and 11,611.25 is: 16,023.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,562.76 : 28,377.39 = 11,611.25 : x
  2. Step 2: Convert to fraction form
    20,562.76/28,377.39 = 11,611.25/x
  3. Step 3: Cross multiply
    20,562.76x = 28,377.39 × 11,611.25
  4. Step 4: Simplify right side
    20,562.76x = 329,496,912.39
  5. Step 5: Solve for x
    x = 329,496,912.39/20,562.76
  6. Step 6: Final answer
    x = 16,023.96

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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.