Home / 30,331.40-41,997.30-27,998.60

Finding the Fourth Proportional to 30,331.40, 41,997.30 and 27,998.60

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Solution

The fourth proportional to 30,331.40, 41,997.30 and 27,998.60 is: 38,767.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,331.40 : 41,997.30 = 27,998.60 : x
  2. Step 2: Convert to fraction form
    30,331.40/41,997.30 = 27,998.60/x
  3. Step 3: Cross multiply
    30,331.40x = 41,997.30 × 27,998.60
  4. Step 4: Simplify right side
    30,331.40x = 1,175,865,603.78
  5. Step 5: Solve for x
    x = 1,175,865,603.78/30,331.40
  6. Step 6: Final answer
    x = 38,767.27

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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.