Home / 20,755.22-28,641.03-11,804.90

Finding the Fourth Proportional to 20,755.22, 28,641.03 and 11,804.90

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Solution

The fourth proportional to 20,755.22, 28,641.03 and 11,804.90 is: 16,290.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,755.22 : 28,641.03 = 11,804.90 : x
  2. Step 2: Convert to fraction form
    20,755.22/28,641.03 = 11,804.90/x
  3. Step 3: Cross multiply
    20,755.22x = 28,641.03 × 11,804.90
  4. Step 4: Simplify right side
    20,755.22x = 338,104,495.05
  5. Step 5: Solve for x
    x = 338,104,495.05/20,755.22
  6. Step 6: Final answer
    x = 16,290.09

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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.