Home / 20,732.60-28,610.91-11,779.67

Finding the Fourth Proportional to 20,732.60, 28,610.91 and 11,779.67

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Solution

The fourth proportional to 20,732.60, 28,610.91 and 11,779.67 is: 16,255.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,732.60 : 28,610.91 = 11,779.67 : x
  2. Step 2: Convert to fraction form
    20,732.60/28,610.91 = 11,779.67/x
  3. Step 3: Cross multiply
    20,732.60x = 28,610.91 × 11,779.67
  4. Step 4: Simplify right side
    20,732.60x = 337,026,935.15
  5. Step 5: Solve for x
    x = 337,026,935.15/20,732.60
  6. Step 6: Final answer
    x = 16,255.90

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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.