Home / 28,831.44-43,231.78-14,785.78

Finding the Fourth Proportional to 28,831.44, 43,231.78 and 14,785.78

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Solution

The fourth proportional to 28,831.44, 43,231.78 and 14,785.78 is: 22,170.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,831.44 : 43,231.78 = 14,785.78 : x
  2. Step 2: Convert to fraction form
    28,831.44/43,231.78 = 14,785.78/x
  3. Step 3: Cross multiply
    28,831.44x = 43,231.78 × 14,785.78
  4. Step 4: Simplify right side
    28,831.44x = 639,215,588.09
  5. Step 5: Solve for x
    x = 639,215,588.09/28,831.44
  6. Step 6: Final answer
    x = 22,170.78

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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.