Home / 20,216.05-27,883.24-13,498.45

Finding the Fourth Proportional to 20,216.05, 27,883.24 and 13,498.45

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Solution

The fourth proportional to 20,216.05, 27,883.24 and 13,498.45 is: 18,617.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,216.05 : 27,883.24 = 13,498.45 : x
  2. Step 2: Convert to fraction form
    20,216.05/27,883.24 = 13,498.45/x
  3. Step 3: Cross multiply
    20,216.05x = 27,883.24 × 13,498.45
  4. Step 4: Simplify right side
    20,216.05x = 376,380,520.98
  5. Step 5: Solve for x
    x = 376,380,520.98/20,216.05
  6. Step 6: Final answer
    x = 18,617.91

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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.