Home / 33,128.26-45,718.20-18,983.84

Finding the Fourth Proportional to 33,128.26, 45,718.20 and 18,983.84

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Solution

The fourth proportional to 33,128.26, 45,718.20 and 18,983.84 is: 26,198.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,128.26 : 45,718.20 = 18,983.84 : x
  2. Step 2: Convert to fraction form
    33,128.26/45,718.20 = 18,983.84/x
  3. Step 3: Cross multiply
    33,128.26x = 45,718.20 × 18,983.84
  4. Step 4: Simplify right side
    33,128.26x = 867,906,670.38
  5. Step 5: Solve for x
    x = 867,906,670.38/33,128.26
  6. Step 6: Final answer
    x = 26,198.38

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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.