Home / 20,732.12-28,610.33-11,779.63

Finding the Fourth Proportional to 20,732.12, 28,610.33 and 11,779.63

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Solution

The fourth proportional to 20,732.12, 28,610.33 and 11,779.63 is: 16,255.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,732.12 : 28,610.33 = 11,779.63 : x
  2. Step 2: Convert to fraction form
    20,732.12/28,610.33 = 11,779.63/x
  3. Step 3: Cross multiply
    20,732.12x = 28,610.33 × 11,779.63
  4. Step 4: Simplify right side
    20,732.12x = 337,019,042.68
  5. Step 5: Solve for x
    x = 337,019,042.68/20,732.12
  6. Step 6: Final answer
    x = 16,255.89

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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.