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Finding the Fourth Proportional to 27,980.01, 41,975.78 and 8,256.69

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Solution

The fourth proportional to 27,980.01, 41,975.78 and 8,256.69 is: 12,386.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,980.01 : 41,975.78 = 8,256.69 : x
  2. Step 2: Convert to fraction form
    27,980.01/41,975.78 = 8,256.69/x
  3. Step 3: Cross multiply
    27,980.01x = 41,975.78 × 8,256.69
  4. Step 4: Simplify right side
    27,980.01x = 346,580,961.68
  5. Step 5: Solve for x
    x = 346,580,961.68/27,980.01
  6. Step 6: Final answer
    x = 12,386.73

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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.