Home / 20,759.42-28,648.86-11,808.50

Finding the Fourth Proportional to 20,759.42, 28,648.86 and 11,808.50

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Solution

The fourth proportional to 20,759.42, 28,648.86 and 11,808.50 is: 16,296.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,759.42 : 28,648.86 = 11,808.50 : x
  2. Step 2: Convert to fraction form
    20,759.42/28,648.86 = 11,808.50/x
  3. Step 3: Cross multiply
    20,759.42x = 28,648.86 × 11,808.50
  4. Step 4: Simplify right side
    20,759.42x = 338,300,063.31
  5. Step 5: Solve for x
    x = 338,300,063.31/20,759.42
  6. Step 6: Final answer
    x = 16,296.22

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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.