Home / 35,415.80-48,872.82-20,105.18

Finding the Fourth Proportional to 35,415.80, 48,872.82 and 20,105.18

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Solution

The fourth proportional to 35,415.80, 48,872.82 and 20,105.18 is: 27,744.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,415.80 : 48,872.82 = 20,105.18 : x
  2. Step 2: Convert to fraction form
    35,415.80/48,872.82 = 20,105.18/x
  3. Step 3: Cross multiply
    35,415.80x = 48,872.82 × 20,105.18
  4. Step 4: Simplify right side
    35,415.80x = 982,596,843.21
  5. Step 5: Solve for x
    x = 982,596,843.21/35,415.80
  6. Step 6: Final answer
    x = 27,744.59

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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.