Home / 19,180.32-28,778.58-8,089.44

Finding the Fourth Proportional to 19,180.32, 28,778.58 and 8,089.44

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Solution

The fourth proportional to 19,180.32, 28,778.58 and 8,089.44 is: 12,137.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,180.32 : 28,778.58 = 8,089.44 : x
  2. Step 2: Convert to fraction form
    19,180.32/28,778.58 = 8,089.44/x
  3. Step 3: Cross multiply
    19,180.32x = 28,778.58 × 8,089.44
  4. Step 4: Simplify right side
    19,180.32x = 232,802,596.20
  5. Step 5: Solve for x
    x = 232,802,596.20/19,180.32
  6. Step 6: Final answer
    x = 12,137.58

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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.