Home / 33,121.60-45,714.08-18,975.84

Finding the Fourth Proportional to 33,121.60, 45,714.08 and 18,975.84

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Solution

The fourth proportional to 33,121.60, 45,714.08 and 18,975.84 is: 26,190.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,121.60 : 45,714.08 = 18,975.84 : x
  2. Step 2: Convert to fraction form
    33,121.60/45,714.08 = 18,975.84/x
  3. Step 3: Cross multiply
    33,121.60x = 45,714.08 × 18,975.84
  4. Step 4: Simplify right side
    33,121.60x = 867,463,067.83
  5. Step 5: Solve for x
    x = 867,463,067.83/33,121.60
  6. Step 6: Final answer
    x = 26,190.25

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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.