Home / 27,988.07-41,987.64-7,997.74

Finding the Fourth Proportional to 27,988.07, 41,987.64 and 7,997.74

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Solution

The fourth proportional to 27,988.07, 41,987.64 and 7,997.74 is: 11,998.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,988.07 : 41,987.64 = 7,997.74 : x
  2. Step 2: Convert to fraction form
    27,988.07/41,987.64 = 7,997.74/x
  3. Step 3: Cross multiply
    27,988.07x = 41,987.64 × 7,997.74
  4. Step 4: Simplify right side
    27,988.07x = 335,806,227.93
  5. Step 5: Solve for x
    x = 335,806,227.93/27,988.07
  6. Step 6: Final answer
    x = 11,998.19

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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.