Home / 27,218.40-40,831.29-8,499.75

Finding the Fourth Proportional to 27,218.40, 40,831.29 and 8,499.75

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Solution

The fourth proportional to 27,218.40, 40,831.29 and 8,499.75 is: 12,750.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,218.40 : 40,831.29 = 8,499.75 : x
  2. Step 2: Convert to fraction form
    27,218.40/40,831.29 = 8,499.75/x
  3. Step 3: Cross multiply
    27,218.40x = 40,831.29 × 8,499.75
  4. Step 4: Simplify right side
    27,218.40x = 347,055,757.18
  5. Step 5: Solve for x
    x = 347,055,757.18/27,218.40
  6. Step 6: Final answer
    x = 12,750.78

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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.