Home / 18,120.85-27,150.28-14,170.59

Finding the Fourth Proportional to 18,120.85, 27,150.28 and 14,170.59

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Solution

The fourth proportional to 18,120.85, 27,150.28 and 14,170.59 is: 21,231.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,120.85 : 27,150.28 = 14,170.59 : x
  2. Step 2: Convert to fraction form
    18,120.85/27,150.28 = 14,170.59/x
  3. Step 3: Cross multiply
    18,120.85x = 27,150.28 × 14,170.59
  4. Step 4: Simplify right side
    18,120.85x = 384,735,450.84
  5. Step 5: Solve for x
    x = 384,735,450.84/18,120.85
  6. Step 6: Final answer
    x = 21,231.65

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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.