Home / 43,427.88-65,142.94-11,838.20

Finding the Fourth Proportional to 43,427.88, 65,142.94 and 11,838.20

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Solution

The fourth proportional to 43,427.88, 65,142.94 and 11,838.20 is: 17,757.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,427.88 : 65,142.94 = 11,838.20 : x
  2. Step 2: Convert to fraction form
    43,427.88/65,142.94 = 11,838.20/x
  3. Step 3: Cross multiply
    43,427.88x = 65,142.94 × 11,838.20
  4. Step 4: Simplify right side
    43,427.88x = 771,175,152.31
  5. Step 5: Solve for x
    x = 771,175,152.31/43,427.88
  6. Step 6: Final answer
    x = 17,757.61

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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.