Home / 18,028.20-27,042.30-6,342.60

Finding the Fourth Proportional to 18,028.20, 27,042.30 and 6,342.60

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Solution

The fourth proportional to 18,028.20, 27,042.30 and 6,342.60 is: 9,513.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,028.20 : 27,042.30 = 6,342.60 : x
  2. Step 2: Convert to fraction form
    18,028.20/27,042.30 = 6,342.60/x
  3. Step 3: Cross multiply
    18,028.20x = 27,042.30 × 6,342.60
  4. Step 4: Simplify right side
    18,028.20x = 171,518,491.98
  5. Step 5: Solve for x
    x = 171,518,491.98/18,028.20
  6. Step 6: Final answer
    x = 9,513.90

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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.