Home / 27,979.20-41,970.96-8,257.32

Finding the Fourth Proportional to 27,979.20, 41,970.96 and 8,257.32

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Solution

The fourth proportional to 27,979.20, 41,970.96 and 8,257.32 is: 12,386.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,979.20 : 41,970.96 = 8,257.32 : x
  2. Step 2: Convert to fraction form
    27,979.20/41,970.96 = 8,257.32/x
  3. Step 3: Cross multiply
    27,979.20x = 41,970.96 × 8,257.32
  4. Step 4: Simplify right side
    27,979.20x = 346,567,647.43
  5. Step 5: Solve for x
    x = 346,567,647.43/27,979.20
  6. Step 6: Final answer
    x = 12,386.62

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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.