Home / 27,183.48-40,789.14-12,390.51

Finding the Fourth Proportional to 27,183.48, 40,789.14 and 12,390.51

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Solution

The fourth proportional to 27,183.48, 40,789.14 and 12,390.51 is: 18,592.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,183.48 : 40,789.14 = 12,390.51 : x
  2. Step 2: Convert to fraction form
    27,183.48/40,789.14 = 12,390.51/x
  3. Step 3: Cross multiply
    27,183.48x = 40,789.14 × 12,390.51
  4. Step 4: Simplify right side
    27,183.48x = 505,398,247.06
  5. Step 5: Solve for x
    x = 505,398,247.06/27,183.48
  6. Step 6: Final answer
    x = 18,592.11

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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.