Home / 21,193.82-29,249.81-13,544.15

Finding the Fourth Proportional to 21,193.82, 29,249.81 and 13,544.15

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Solution

The fourth proportional to 21,193.82, 29,249.81 and 13,544.15 is: 18,692.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,193.82 : 29,249.81 = 13,544.15 : x
  2. Step 2: Convert to fraction form
    21,193.82/29,249.81 = 13,544.15/x
  3. Step 3: Cross multiply
    21,193.82x = 29,249.81 × 13,544.15
  4. Step 4: Simplify right side
    21,193.82x = 396,163,650.93
  5. Step 5: Solve for x
    x = 396,163,650.93/21,193.82
  6. Step 6: Final answer
    x = 18,692.41

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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.