Home / 20,150.30-27,799.45-11,650.87

Finding the Fourth Proportional to 20,150.30, 27,799.45 and 11,650.87

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Solution

The fourth proportional to 20,150.30, 27,799.45 and 11,650.87 is: 16,073.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,150.30 : 27,799.45 = 11,650.87 : x
  2. Step 2: Convert to fraction form
    20,150.30/27,799.45 = 11,650.87/x
  3. Step 3: Cross multiply
    20,150.30x = 27,799.45 × 11,650.87
  4. Step 4: Simplify right side
    20,150.30x = 323,887,778.02
  5. Step 5: Solve for x
    x = 323,887,778.02/20,150.30
  6. Step 6: Final answer
    x = 16,073.60

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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.