Home / 20,759.41-28,647.99-11,808.65

Finding the Fourth Proportional to 20,759.41, 28,647.99 and 11,808.65

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Solution

The fourth proportional to 20,759.41, 28,647.99 and 11,808.65 is: 16,295.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,759.41 : 28,647.99 = 11,808.65 : x
  2. Step 2: Convert to fraction form
    20,759.41/28,647.99 = 11,808.65/x
  3. Step 3: Cross multiply
    20,759.41x = 28,647.99 × 11,808.65
  4. Step 4: Simplify right side
    20,759.41x = 338,294,009.16
  5. Step 5: Solve for x
    x = 338,294,009.16/20,759.41
  6. Step 6: Final answer
    x = 16,295.93

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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.