Home / 18,211.48-27,181.25-17,768.68

Finding the Fourth Proportional to 18,211.48, 27,181.25 and 17,768.68

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Solution

The fourth proportional to 18,211.48, 27,181.25 and 17,768.68 is: 26,520.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,211.48 : 27,181.25 = 17,768.68 : x
  2. Step 2: Convert to fraction form
    18,211.48/27,181.25 = 17,768.68/x
  3. Step 3: Cross multiply
    18,211.48x = 27,181.25 × 17,768.68
  4. Step 4: Simplify right side
    18,211.48x = 482,974,933.25
  5. Step 5: Solve for x
    x = 482,974,933.25/18,211.48
  6. Step 6: Final answer
    x = 26,520.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.