Home / 43,871.42-65,782.83-20,485.10

Finding the Fourth Proportional to 43,871.42, 65,782.83 and 20,485.10

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Solution

The fourth proportional to 43,871.42, 65,782.83 and 20,485.10 is: 30,716.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,871.42 : 65,782.83 = 20,485.10 : x
  2. Step 2: Convert to fraction form
    43,871.42/65,782.83 = 20,485.10/x
  3. Step 3: Cross multiply
    43,871.42x = 65,782.83 × 20,485.10
  4. Step 4: Simplify right side
    43,871.42x = 1,347,568,092.11
  5. Step 5: Solve for x
    x = 1,347,568,092.11/43,871.42
  6. Step 6: Final answer
    x = 30,716.31

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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.