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Finding the Fourth Proportional to 23,809.80, 35,716.32 and 12,119.88

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Solution

The fourth proportional to 23,809.80, 35,716.32 and 12,119.88 is: 18,180.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,809.80 : 35,716.32 = 12,119.88 : x
  2. Step 2: Convert to fraction form
    23,809.80/35,716.32 = 12,119.88/x
  3. Step 3: Cross multiply
    23,809.80x = 35,716.32 × 12,119.88
  4. Step 4: Simplify right side
    23,809.80x = 432,877,512.44
  5. Step 5: Solve for x
    x = 432,877,512.44/23,809.80
  6. Step 6: Final answer
    x = 18,180.64

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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.