Home / 33,278.78-45,932.46-21,950.30

Finding the Fourth Proportional to 33,278.78, 45,932.46 and 21,950.30

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Solution

The fourth proportional to 33,278.78, 45,932.46 and 21,950.30 is: 30,296.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,278.78 : 45,932.46 = 21,950.30 : x
  2. Step 2: Convert to fraction form
    33,278.78/45,932.46 = 21,950.30/x
  3. Step 3: Cross multiply
    33,278.78x = 45,932.46 × 21,950.30
  4. Step 4: Simplify right side
    33,278.78x = 1,008,231,276.74
  5. Step 5: Solve for x
    x = 1,008,231,276.74/33,278.78
  6. Step 6: Final answer
    x = 30,296.52

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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.