Home / 18,765.64-28,213.26-18,273.16

Finding the Fourth Proportional to 18,765.64, 28,213.26 and 18,273.16

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Solution

The fourth proportional to 18,765.64, 28,213.26 and 18,273.16 is: 27,472.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,765.64 : 28,213.26 = 18,273.16 : x
  2. Step 2: Convert to fraction form
    18,765.64/28,213.26 = 18,273.16/x
  3. Step 3: Cross multiply
    18,765.64x = 28,213.26 × 18,273.16
  4. Step 4: Simplify right side
    18,765.64x = 515,545,414.10
  5. Step 5: Solve for x
    x = 515,545,414.10/18,765.64
  6. Step 6: Final answer
    x = 27,472.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.