Home / 30,626.62-42,261.69-18,692.89

Finding the Fourth Proportional to 30,626.62, 42,261.69 and 18,692.89

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Solution

The fourth proportional to 30,626.62, 42,261.69 and 18,692.89 is: 25,794.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,626.62 : 42,261.69 = 18,692.89 : x
  2. Step 2: Convert to fraction form
    30,626.62/42,261.69 = 18,692.89/x
  3. Step 3: Cross multiply
    30,626.62x = 42,261.69 × 18,692.89
  4. Step 4: Simplify right side
    30,626.62x = 789,993,122.38
  5. Step 5: Solve for x
    x = 789,993,122.38/30,626.62
  6. Step 6: Final answer
    x = 25,794.33

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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.