Home / 27,310.72-37,692.48-20,257.28

Finding the Fourth Proportional to 27,310.72, 37,692.48 and 20,257.28

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Solution

The fourth proportional to 27,310.72, 37,692.48 and 20,257.28 is: 27,957.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,310.72 : 37,692.48 = 20,257.28 : x
  2. Step 2: Convert to fraction form
    27,310.72/37,692.48 = 20,257.28/x
  3. Step 3: Cross multiply
    27,310.72x = 37,692.48 × 20,257.28
  4. Step 4: Simplify right side
    27,310.72x = 763,547,121.25
  5. Step 5: Solve for x
    x = 763,547,121.25/27,310.72
  6. Step 6: Final answer
    x = 27,957.78

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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.