Home / 27,718.07-41,572.11-7,991.78

Finding the Fourth Proportional to 27,718.07, 41,572.11 and 7,991.78

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Solution

The fourth proportional to 27,718.07, 41,572.11 and 7,991.78 is: 11,986.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,718.07 : 41,572.11 = 7,991.78 : x
  2. Step 2: Convert to fraction form
    27,718.07/41,572.11 = 7,991.78/x
  3. Step 3: Cross multiply
    27,718.07x = 41,572.11 × 7,991.78
  4. Step 4: Simplify right side
    27,718.07x = 332,235,157.26
  5. Step 5: Solve for x
    x = 332,235,157.26/27,718.07
  6. Step 6: Final answer
    x = 11,986.23

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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.