Home / 20,733.14-28,611.80-11,783.61

Finding the Fourth Proportional to 20,733.14, 28,611.80 and 11,783.61

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Solution

The fourth proportional to 20,733.14, 28,611.80 and 11,783.61 is: 16,261.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,733.14 : 28,611.80 = 11,783.61 : x
  2. Step 2: Convert to fraction form
    20,733.14/28,611.80 = 11,783.61/x
  3. Step 3: Cross multiply
    20,733.14x = 28,611.80 × 11,783.61
  4. Step 4: Simplify right side
    20,733.14x = 337,150,233.68
  5. Step 5: Solve for x
    x = 337,150,233.68/20,733.14
  6. Step 6: Final answer
    x = 16,261.42

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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.