Home / 27,885.49-41,791.30-20,455.15

Finding the Fourth Proportional to 27,885.49, 41,791.30 and 20,455.15

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Solution

The fourth proportional to 27,885.49, 41,791.30 and 20,455.15 is: 30,655.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,885.49 : 41,791.30 = 20,455.15 : x
  2. Step 2: Convert to fraction form
    27,885.49/41,791.30 = 20,455.15/x
  3. Step 3: Cross multiply
    27,885.49x = 41,791.30 × 20,455.15
  4. Step 4: Simplify right side
    27,885.49x = 854,847,310.20
  5. Step 5: Solve for x
    x = 854,847,310.20/27,885.49
  6. Step 6: Final answer
    x = 30,655.63

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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.