Home / 43,418.97-65,128.46-12,254.22

Finding the Fourth Proportional to 43,418.97, 65,128.46 and 12,254.22

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Solution

The fourth proportional to 43,418.97, 65,128.46 and 12,254.22 is: 18,381.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,418.97 : 65,128.46 = 12,254.22 : x
  2. Step 2: Convert to fraction form
    43,418.97/65,128.46 = 12,254.22/x
  3. Step 3: Cross multiply
    43,418.97x = 65,128.46 × 12,254.22
  4. Step 4: Simplify right side
    43,418.97x = 798,098,415.83
  5. Step 5: Solve for x
    x = 798,098,415.83/43,418.97
  6. Step 6: Final answer
    x = 18,381.33

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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.