Home / 20,470.46-30,494.43-19,850.96

Finding the Fourth Proportional to 20,470.46, 30,494.43 and 19,850.96

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Solution

The fourth proportional to 20,470.46, 30,494.43 and 19,850.96 is: 29,571.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,470.46 : 30,494.43 = 19,850.96 : x
  2. Step 2: Convert to fraction form
    20,470.46/30,494.43 = 19,850.96/x
  3. Step 3: Cross multiply
    20,470.46x = 30,494.43 × 19,850.96
  4. Step 4: Simplify right side
    20,470.46x = 605,343,786.39
  5. Step 5: Solve for x
    x = 605,343,786.39/20,470.46
  6. Step 6: Final answer
    x = 29,571.57

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.