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Finding the Fourth Proportional to 27,986.99, 41,980.48 and 19,195.25

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Solution

The fourth proportional to 27,986.99, 41,980.48 and 19,195.25 is: 28,792.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,986.99 : 41,980.48 = 19,195.25 : x
  2. Step 2: Convert to fraction form
    27,986.99/41,980.48 = 19,195.25/x
  3. Step 3: Cross multiply
    27,986.99x = 41,980.48 × 19,195.25
  4. Step 4: Simplify right side
    27,986.99x = 805,825,550.83
  5. Step 5: Solve for x
    x = 805,825,550.83/27,986.99
  6. Step 6: Final answer
    x = 28,792.87

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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.