Home / 31,692.84-43,732.80-18,261.42

Finding the Fourth Proportional to 31,692.84, 43,732.80 and 18,261.42

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Solution

The fourth proportional to 31,692.84, 43,732.80 and 18,261.42 is: 25,198.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,692.84 : 43,732.80 = 18,261.42 : x
  2. Step 2: Convert to fraction form
    31,692.84/43,732.80 = 18,261.42/x
  3. Step 3: Cross multiply
    31,692.84x = 43,732.80 × 18,261.42
  4. Step 4: Simplify right side
    31,692.84x = 798,623,028.58
  5. Step 5: Solve for x
    x = 798,623,028.58/31,692.84
  6. Step 6: Final answer
    x = 25,198.85

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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.