Home / 33,090.64-45,661.92-18,751.12

Finding the Fourth Proportional to 33,090.64, 45,661.92 and 18,751.12

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Solution

The fourth proportional to 33,090.64, 45,661.92 and 18,751.12 is: 25,874.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,090.64 : 45,661.92 = 18,751.12 : x
  2. Step 2: Convert to fraction form
    33,090.64/45,661.92 = 18,751.12/x
  3. Step 3: Cross multiply
    33,090.64x = 45,661.92 × 18,751.12
  4. Step 4: Simplify right side
    33,090.64x = 856,212,141.35
  5. Step 5: Solve for x
    x = 856,212,141.35/33,090.64
  6. Step 6: Final answer
    x = 25,874.75

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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.