Home / 18,286.87-27,430.31-4,435.75

Finding the Fourth Proportional to 18,286.87, 27,430.31 and 4,435.75

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Solution

The fourth proportional to 18,286.87, 27,430.31 and 4,435.75 is: 6,653.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,286.87 : 27,430.31 = 4,435.75 : x
  2. Step 2: Convert to fraction form
    18,286.87/27,430.31 = 4,435.75/x
  3. Step 3: Cross multiply
    18,286.87x = 27,430.31 × 4,435.75
  4. Step 4: Simplify right side
    18,286.87x = 121,673,997.58
  5. Step 5: Solve for x
    x = 121,673,997.58/18,286.87
  6. Step 6: Final answer
    x = 6,653.63

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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.