Home / 31,183.04-43,018.88-18,600.50

Finding the Fourth Proportional to 31,183.04, 43,018.88 and 18,600.50

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Solution

The fourth proportional to 31,183.04, 43,018.88 and 18,600.50 is: 25,660.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,183.04 : 43,018.88 = 18,600.50 : x
  2. Step 2: Convert to fraction form
    31,183.04/43,018.88 = 18,600.50/x
  3. Step 3: Cross multiply
    31,183.04x = 43,018.88 × 18,600.50
  4. Step 4: Simplify right side
    31,183.04x = 800,172,677.44
  5. Step 5: Solve for x
    x = 800,172,677.44/31,183.04
  6. Step 6: Final answer
    x = 25,660.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.