Home / 18,360.20-27,540.30-12,801.80

Finding the Fourth Proportional to 18,360.20, 27,540.30 and 12,801.80

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Solution

The fourth proportional to 18,360.20, 27,540.30 and 12,801.80 is: 19,202.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,360.20 : 27,540.30 = 12,801.80 : x
  2. Step 2: Convert to fraction form
    18,360.20/27,540.30 = 12,801.80/x
  3. Step 3: Cross multiply
    18,360.20x = 27,540.30 × 12,801.80
  4. Step 4: Simplify right side
    18,360.20x = 352,565,412.54
  5. Step 5: Solve for x
    x = 352,565,412.54/18,360.20
  6. Step 6: Final answer
    x = 19,202.70

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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.