Home / 28,968.78-43,452.77-8,192.28

Finding the Fourth Proportional to 28,968.78, 43,452.77 and 8,192.28

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Solution

The fourth proportional to 28,968.78, 43,452.77 and 8,192.28 is: 12,288.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,968.78 : 43,452.77 = 8,192.28 : x
  2. Step 2: Convert to fraction form
    28,968.78/43,452.77 = 8,192.28/x
  3. Step 3: Cross multiply
    28,968.78x = 43,452.77 × 8,192.28
  4. Step 4: Simplify right side
    28,968.78x = 355,977,217.65
  5. Step 5: Solve for x
    x = 355,977,217.65/28,968.78
  6. Step 6: Final answer
    x = 12,288.31

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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.