Home / 33,245.44-45,878.34-18,138.28

Finding the Fourth Proportional to 33,245.44, 45,878.34 and 18,138.28

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Solution

The fourth proportional to 33,245.44, 45,878.34 and 18,138.28 is: 25,030.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,245.44 : 45,878.34 = 18,138.28 : x
  2. Step 2: Convert to fraction form
    33,245.44/45,878.34 = 18,138.28/x
  3. Step 3: Cross multiply
    33,245.44x = 45,878.34 × 18,138.28
  4. Step 4: Simplify right side
    33,245.44x = 832,154,176.86
  5. Step 5: Solve for x
    x = 832,154,176.86/33,245.44
  6. Step 6: Final answer
    x = 25,030.63

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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.