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Finding the Fourth Proportional to 27,396.80, 37,808.72 and 17,321.60

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Solution

The fourth proportional to 27,396.80, 37,808.72 and 17,321.60 is: 23,904.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,396.80 : 37,808.72 = 17,321.60 : x
  2. Step 2: Convert to fraction form
    27,396.80/37,808.72 = 17,321.60/x
  3. Step 3: Cross multiply
    27,396.80x = 37,808.72 × 17,321.60
  4. Step 4: Simplify right side
    27,396.80x = 654,907,524.35
  5. Step 5: Solve for x
    x = 654,907,524.35/27,396.80
  6. Step 6: Final answer
    x = 23,904.53

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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.