Home / 43,361.40-65,040.60-18,385.36

Finding the Fourth Proportional to 43,361.40, 65,040.60 and 18,385.36

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Solution

The fourth proportional to 43,361.40, 65,040.60 and 18,385.36 is: 27,577.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,361.40 : 65,040.60 = 18,385.36 : x
  2. Step 2: Convert to fraction form
    43,361.40/65,040.60 = 18,385.36/x
  3. Step 3: Cross multiply
    43,361.40x = 65,040.60 × 18,385.36
  4. Step 4: Simplify right side
    43,361.40x = 1,195,794,845.62
  5. Step 5: Solve for x
    x = 1,195,794,845.62/43,361.40
  6. Step 6: Final answer
    x = 27,577.40

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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.