Home / 33,143.28-45,736.38-18,986.28

Finding the Fourth Proportional to 33,143.28, 45,736.38 and 18,986.28

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Solution

The fourth proportional to 33,143.28, 45,736.38 and 18,986.28 is: 26,200.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,143.28 : 45,736.38 = 18,986.28 : x
  2. Step 2: Convert to fraction form
    33,143.28/45,736.38 = 18,986.28/x
  3. Step 3: Cross multiply
    33,143.28x = 45,736.38 × 18,986.28
  4. Step 4: Simplify right side
    33,143.28x = 868,363,716.87
  5. Step 5: Solve for x
    x = 868,363,716.87/33,143.28
  6. Step 6: Final answer
    x = 26,200.30

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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.