Home / 19,052.40-28,578.60-11,179.20

Finding the Fourth Proportional to 19,052.40, 28,578.60 and 11,179.20

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Solution

The fourth proportional to 19,052.40, 28,578.60 and 11,179.20 is: 16,768.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,052.40 : 28,578.60 = 11,179.20 : x
  2. Step 2: Convert to fraction form
    19,052.40/28,578.60 = 11,179.20/x
  3. Step 3: Cross multiply
    19,052.40x = 28,578.60 × 11,179.20
  4. Step 4: Simplify right side
    19,052.40x = 319,485,885.12
  5. Step 5: Solve for x
    x = 319,485,885.12/19,052.40
  6. Step 6: Final answer
    x = 16,768.80

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Similar ratio
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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.