Home / 20,745.06-28,620.06-11,668.32

Finding the Fourth Proportional to 20,745.06, 28,620.06 and 11,668.32

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Solution

The fourth proportional to 20,745.06, 28,620.06 and 11,668.32 is: 16,097.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,745.06 : 28,620.06 = 11,668.32 : x
  2. Step 2: Convert to fraction form
    20,745.06/28,620.06 = 11,668.32/x
  3. Step 3: Cross multiply
    20,745.06x = 28,620.06 × 11,668.32
  4. Step 4: Simplify right side
    20,745.06x = 333,948,018.50
  5. Step 5: Solve for x
    x = 333,948,018.50/20,745.06
  6. Step 6: Final answer
    x = 16,097.71

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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.