Home / 33,420.75-46,120.64-19,992.57

Finding the Fourth Proportional to 33,420.75, 46,120.64 and 19,992.57

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Solution

The fourth proportional to 33,420.75, 46,120.64 and 19,992.57 is: 27,589.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,420.75 : 46,120.64 = 19,992.57 : x
  2. Step 2: Convert to fraction form
    33,420.75/46,120.64 = 19,992.57/x
  3. Step 3: Cross multiply
    33,420.75x = 46,120.64 × 19,992.57
  4. Step 4: Simplify right side
    33,420.75x = 922,070,023.68
  5. Step 5: Solve for x
    x = 922,070,023.68/33,420.75
  6. Step 6: Final answer
    x = 27,589.75

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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.