Home / 20,650.38-28,497.30-11,695.83

Finding the Fourth Proportional to 20,650.38, 28,497.30 and 11,695.83

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Solution

The fourth proportional to 20,650.38, 28,497.30 and 11,695.83 is: 16,140.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,650.38 : 28,497.30 = 11,695.83 : x
  2. Step 2: Convert to fraction form
    20,650.38/28,497.30 = 11,695.83/x
  3. Step 3: Cross multiply
    20,650.38x = 28,497.30 × 11,695.83
  4. Step 4: Simplify right side
    20,650.38x = 333,299,576.26
  5. Step 5: Solve for x
    x = 333,299,576.26/20,650.38
  6. Step 6: Final answer
    x = 16,140.12

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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.