Home / 30,080.40-41,512.20-16,651.41

Finding the Fourth Proportional to 30,080.40, 41,512.20 and 16,651.41

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Solution

The fourth proportional to 30,080.40, 41,512.20 and 16,651.41 is: 22,979.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,080.40 : 41,512.20 = 16,651.41 : x
  2. Step 2: Convert to fraction form
    30,080.40/41,512.20 = 16,651.41/x
  3. Step 3: Cross multiply
    30,080.40x = 41,512.20 × 16,651.41
  4. Step 4: Simplify right side
    30,080.40x = 691,236,662.20
  5. Step 5: Solve for x
    x = 691,236,662.20/30,080.40
  6. Step 6: Final answer
    x = 22,979.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.