Home / 33,278.40-49,900.32-20,767.68

Finding the Fourth Proportional to 33,278.40, 49,900.32 and 20,767.68

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Solution

The fourth proportional to 33,278.40, 49,900.32 and 20,767.68 is: 31,140.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,278.40 : 49,900.32 = 20,767.68 : x
  2. Step 2: Convert to fraction form
    33,278.40/49,900.32 = 20,767.68/x
  3. Step 3: Cross multiply
    33,278.40x = 49,900.32 × 20,767.68
  4. Step 4: Simplify right side
    33,278.40x = 1,036,313,877.66
  5. Step 5: Solve for x
    x = 1,036,313,877.66/33,278.40
  6. Step 6: Final answer
    x = 31,140.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.