Home / 28,957.26-43,435.88-8,181.30

Finding the Fourth Proportional to 28,957.26, 43,435.88 and 8,181.30

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Solution

The fourth proportional to 28,957.26, 43,435.88 and 8,181.30 is: 12,271.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,957.26 : 43,435.88 = 8,181.30 : x
  2. Step 2: Convert to fraction form
    28,957.26/43,435.88 = 8,181.30/x
  3. Step 3: Cross multiply
    28,957.26x = 43,435.88 × 8,181.30
  4. Step 4: Simplify right side
    28,957.26x = 355,361,965.04
  5. Step 5: Solve for x
    x = 355,361,965.04/28,957.26
  6. Step 6: Final answer
    x = 12,271.95

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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.