Home / 43,571.25-65,357.69-12,407.31

Finding the Fourth Proportional to 43,571.25, 65,357.69 and 12,407.31

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Solution

The fourth proportional to 43,571.25, 65,357.69 and 12,407.31 is: 18,611.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,571.25 : 65,357.69 = 12,407.31 : x
  2. Step 2: Convert to fraction form
    43,571.25/65,357.69 = 12,407.31/x
  3. Step 3: Cross multiply
    43,571.25x = 65,357.69 × 12,407.31
  4. Step 4: Simplify right side
    43,571.25x = 810,913,058.68
  5. Step 5: Solve for x
    x = 810,913,058.68/43,571.25
  6. Step 6: Final answer
    x = 18,611.20

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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.