Home / 19,784.38-27,301.05-11,284.54

Finding the Fourth Proportional to 19,784.38, 27,301.05 and 11,284.54

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Solution

The fourth proportional to 19,784.38, 27,301.05 and 11,284.54 is: 15,571.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,784.38 : 27,301.05 = 11,284.54 : x
  2. Step 2: Convert to fraction form
    19,784.38/27,301.05 = 11,284.54/x
  3. Step 3: Cross multiply
    19,784.38x = 27,301.05 × 11,284.54
  4. Step 4: Simplify right side
    19,784.38x = 308,079,799.30
  5. Step 5: Solve for x
    x = 308,079,799.30/19,784.38
  6. Step 6: Final answer
    x = 15,571.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.