Home / 19,543.78-29,320.62-5,692.78

Finding the Fourth Proportional to 19,543.78, 29,320.62 and 5,692.78

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Solution

The fourth proportional to 19,543.78, 29,320.62 and 5,692.78 is: 8,540.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,543.78 : 29,320.62 = 5,692.78 : x
  2. Step 2: Convert to fraction form
    19,543.78/29,320.62 = 5,692.78/x
  3. Step 3: Cross multiply
    19,543.78x = 29,320.62 × 5,692.78
  4. Step 4: Simplify right side
    19,543.78x = 166,915,839.12
  5. Step 5: Solve for x
    x = 166,915,839.12/19,543.78
  6. Step 6: Final answer
    x = 8,540.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.