Home / 33,130.43-45,738.86-21,832.76

Finding the Fourth Proportional to 33,130.43, 45,738.86 and 21,832.76

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Solution

The fourth proportional to 33,130.43, 45,738.86 and 21,832.76 is: 30,141.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,130.43 : 45,738.86 = 21,832.76 : x
  2. Step 2: Convert to fraction form
    33,130.43/45,738.86 = 21,832.76/x
  3. Step 3: Cross multiply
    33,130.43x = 45,738.86 × 21,832.76
  4. Step 4: Simplify right side
    33,130.43x = 998,605,553.05
  5. Step 5: Solve for x
    x = 998,605,553.05/33,130.43
  6. Step 6: Final answer
    x = 30,141.64

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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.