Home / 43,080.18-64,622.31-11,915.43

Finding the Fourth Proportional to 43,080.18, 64,622.31 and 11,915.43

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Solution

The fourth proportional to 43,080.18, 64,622.31 and 11,915.43 is: 17,873.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,080.18 : 64,622.31 = 11,915.43 : x
  2. Step 2: Convert to fraction form
    43,080.18/64,622.31 = 11,915.43/x
  3. Step 3: Cross multiply
    43,080.18x = 64,622.31 × 11,915.43
  4. Step 4: Simplify right side
    43,080.18x = 770,002,611.24
  5. Step 5: Solve for x
    x = 770,002,611.24/43,080.18
  6. Step 6: Final answer
    x = 17,873.71

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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.