Home / 18,286.20-27,429.28-4,435.20

Finding the Fourth Proportional to 18,286.20, 27,429.28 and 4,435.20

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Solution

The fourth proportional to 18,286.20, 27,429.28 and 4,435.20 is: 6,652.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,286.20 : 27,429.28 = 4,435.20 : x
  2. Step 2: Convert to fraction form
    18,286.20/27,429.28 = 4,435.20/x
  3. Step 3: Cross multiply
    18,286.20x = 27,429.28 × 4,435.20
  4. Step 4: Simplify right side
    18,286.20x = 121,654,342.66
  5. Step 5: Solve for x
    x = 121,654,342.66/18,286.20
  6. Step 6: Final answer
    x = 6,652.80

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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.