Home / 19,182.96-28,778.60-14,310.80

Finding the Fourth Proportional to 19,182.96, 28,778.60 and 14,310.80

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Solution

The fourth proportional to 19,182.96, 28,778.60 and 14,310.80 is: 21,469.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,182.96 : 28,778.60 = 14,310.80 : x
  2. Step 2: Convert to fraction form
    19,182.96/28,778.60 = 14,310.80/x
  3. Step 3: Cross multiply
    19,182.96x = 28,778.60 × 14,310.80
  4. Step 4: Simplify right side
    19,182.96x = 411,844,788.88
  5. Step 5: Solve for x
    x = 411,844,788.88/19,182.96
  6. Step 6: Final answer
    x = 21,469.30

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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.