Home / 20,732.37-28,610.68-11,779.88

Finding the Fourth Proportional to 20,732.37, 28,610.68 and 11,779.88

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Solution

The fourth proportional to 20,732.37, 28,610.68 and 11,779.88 is: 16,256.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,732.37 : 28,610.68 = 11,779.88 : x
  2. Step 2: Convert to fraction form
    20,732.37/28,610.68 = 11,779.88/x
  3. Step 3: Cross multiply
    20,732.37x = 28,610.68 × 11,779.88
  4. Step 4: Simplify right side
    20,732.37x = 337,030,318.22
  5. Step 5: Solve for x
    x = 337,030,318.22/20,732.37
  6. Step 6: Final answer
    x = 16,256.24

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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.