Home / 43,387.41-65,105.62-20,013.85

Finding the Fourth Proportional to 43,387.41, 65,105.62 and 20,013.85

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Solution

The fourth proportional to 43,387.41, 65,105.62 and 20,013.85 is: 30,032.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,387.41 : 65,105.62 = 20,013.85 : x
  2. Step 2: Convert to fraction form
    43,387.41/65,105.62 = 20,013.85/x
  3. Step 3: Cross multiply
    43,387.41x = 65,105.62 × 20,013.85
  4. Step 4: Simplify right side
    43,387.41x = 1,303,014,112.84
  5. Step 5: Solve for x
    x = 1,303,014,112.84/43,387.41
  6. Step 6: Final answer
    x = 30,032.08

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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.