Home / 33,070.17-45,636.18-18,729.78

Finding the Fourth Proportional to 33,070.17, 45,636.18 and 18,729.78

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Solution

The fourth proportional to 33,070.17, 45,636.18 and 18,729.78 is: 25,846.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,070.17 : 45,636.18 = 18,729.78 : x
  2. Step 2: Convert to fraction form
    33,070.17/45,636.18 = 18,729.78/x
  3. Step 3: Cross multiply
    33,070.17x = 45,636.18 × 18,729.78
  4. Step 4: Simplify right side
    33,070.17x = 854,755,611.44
  5. Step 5: Solve for x
    x = 854,755,611.44/33,070.17
  6. Step 6: Final answer
    x = 25,846.73

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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.