Home / 20,584.58-28,406.34-11,631.89

Finding the Fourth Proportional to 20,584.58, 28,406.34 and 11,631.89

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Solution

The fourth proportional to 20,584.58, 28,406.34 and 11,631.89 is: 16,051.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,584.58 : 28,406.34 = 11,631.89 : x
  2. Step 2: Convert to fraction form
    20,584.58/28,406.34 = 11,631.89/x
  3. Step 3: Cross multiply
    20,584.58x = 28,406.34 × 11,631.89
  4. Step 4: Simplify right side
    20,584.58x = 330,419,422.18
  5. Step 5: Solve for x
    x = 330,419,422.18/20,584.58
  6. Step 6: Final answer
    x = 16,051.79

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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.