Home / 27,165.45-40,739.88-18,785.83

Finding the Fourth Proportional to 27,165.45, 40,739.88 and 18,785.83

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Solution

The fourth proportional to 27,165.45, 40,739.88 and 18,785.83 is: 28,173.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,165.45 : 40,739.88 = 18,785.83 : x
  2. Step 2: Convert to fraction form
    27,165.45/40,739.88 = 18,785.83/x
  3. Step 3: Cross multiply
    27,165.45x = 40,739.88 × 18,785.83
  4. Step 4: Simplify right side
    27,165.45x = 765,332,459.90
  5. Step 5: Solve for x
    x = 765,332,459.90/27,165.45
  6. Step 6: Final answer
    x = 28,173.01

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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.