Home / 18,269.45-27,404.37-15,619.79

Finding the Fourth Proportional to 18,269.45, 27,404.37 and 15,619.79

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Solution

The fourth proportional to 18,269.45, 27,404.37 and 15,619.79 is: 23,429.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,269.45 : 27,404.37 = 15,619.79 : x
  2. Step 2: Convert to fraction form
    18,269.45/27,404.37 = 15,619.79/x
  3. Step 3: Cross multiply
    18,269.45x = 27,404.37 × 15,619.79
  4. Step 4: Simplify right side
    18,269.45x = 428,050,504.48
  5. Step 5: Solve for x
    x = 428,050,504.48/18,269.45
  6. Step 6: Final answer
    x = 23,429.85

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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.