Home / 27,717.07-41,570.61-7,990.78

Finding the Fourth Proportional to 27,717.07, 41,570.61 and 7,990.78

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Solution

The fourth proportional to 27,717.07, 41,570.61 and 7,990.78 is: 11,984.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,717.07 : 41,570.61 = 7,990.78 : x
  2. Step 2: Convert to fraction form
    27,717.07/41,570.61 = 7,990.78/x
  3. Step 3: Cross multiply
    27,717.07x = 41,570.61 × 7,990.78
  4. Step 4: Simplify right side
    27,717.07x = 332,181,598.98
  5. Step 5: Solve for x
    x = 332,181,598.98/27,717.07
  6. Step 6: Final answer
    x = 11,984.73

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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.