Home / 20,190.66-27,874.70-13,498.44

Finding the Fourth Proportional to 20,190.66, 27,874.70 and 13,498.44

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Solution

The fourth proportional to 20,190.66, 27,874.70 and 13,498.44 is: 18,635.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,190.66 : 27,874.70 = 13,498.44 : x
  2. Step 2: Convert to fraction form
    20,190.66/27,874.70 = 13,498.44/x
  3. Step 3: Cross multiply
    20,190.66x = 27,874.70 × 13,498.44
  4. Step 4: Simplify right side
    20,190.66x = 376,264,965.47
  5. Step 5: Solve for x
    x = 376,264,965.47/20,190.66
  6. Step 6: Final answer
    x = 18,635.60

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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.