Home / 20,757.11-28,642.82-11,804.13

Finding the Fourth Proportional to 20,757.11, 28,642.82 and 11,804.13

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Solution

The fourth proportional to 20,757.11, 28,642.82 and 11,804.13 is: 16,288.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,757.11 : 28,642.82 = 11,804.13 : x
  2. Step 2: Convert to fraction form
    20,757.11/28,642.82 = 11,804.13/x
  3. Step 3: Cross multiply
    20,757.11x = 28,642.82 × 11,804.13
  4. Step 4: Simplify right side
    20,757.11x = 338,103,511.83
  5. Step 5: Solve for x
    x = 338,103,511.83/20,757.11
  6. Step 6: Final answer
    x = 16,288.57

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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.