Home / 20,733.22-28,610.81-11,779.54

Finding the Fourth Proportional to 20,733.22, 28,610.81 and 11,779.54

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Solution

The fourth proportional to 20,733.22, 28,610.81 and 11,779.54 is: 16,255.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,733.22 : 28,610.81 = 11,779.54 : x
  2. Step 2: Convert to fraction form
    20,733.22/28,610.81 = 11,779.54/x
  3. Step 3: Cross multiply
    20,733.22x = 28,610.81 × 11,779.54
  4. Step 4: Simplify right side
    20,733.22x = 337,022,180.83
  5. Step 5: Solve for x
    x = 337,022,180.83/20,733.22
  6. Step 6: Final answer
    x = 16,255.18

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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.