Home / 18,072.20-27,077.46-12,798.45

Finding the Fourth Proportional to 18,072.20, 27,077.46 and 12,798.45

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Solution

The fourth proportional to 18,072.20, 27,077.46 and 12,798.45 is: 19,175.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,072.20 : 27,077.46 = 12,798.45 : x
  2. Step 2: Convert to fraction form
    18,072.20/27,077.46 = 12,798.45/x
  3. Step 3: Cross multiply
    18,072.20x = 27,077.46 × 12,798.45
  4. Step 4: Simplify right side
    18,072.20x = 346,549,453.94
  5. Step 5: Solve for x
    x = 346,549,453.94/18,072.20
  6. Step 6: Final answer
    x = 19,175.83

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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.