Home / 20,336.58-28,063.83-11,383.86

Finding the Fourth Proportional to 20,336.58, 28,063.83 and 11,383.86

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Solution

The fourth proportional to 20,336.58, 28,063.83 and 11,383.86 is: 15,709.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,336.58 : 28,063.83 = 11,383.86 : x
  2. Step 2: Convert to fraction form
    20,336.58/28,063.83 = 11,383.86/x
  3. Step 3: Cross multiply
    20,336.58x = 28,063.83 × 11,383.86
  4. Step 4: Simplify right side
    20,336.58x = 319,474,711.78
  5. Step 5: Solve for x
    x = 319,474,711.78/20,336.58
  6. Step 6: Final answer
    x = 15,709.36

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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.