Home / 19,882.89-29,824.18-5,091.78

Finding the Fourth Proportional to 19,882.89, 29,824.18 and 5,091.78

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Solution

The fourth proportional to 19,882.89, 29,824.18 and 5,091.78 is: 7,637.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,882.89 : 29,824.18 = 5,091.78 : x
  2. Step 2: Convert to fraction form
    19,882.89/29,824.18 = 5,091.78/x
  3. Step 3: Cross multiply
    19,882.89x = 29,824.18 × 5,091.78
  4. Step 4: Simplify right side
    19,882.89x = 151,858,163.24
  5. Step 5: Solve for x
    x = 151,858,163.24/19,882.89
  6. Step 6: Final answer
    x = 7,637.63

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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.