Home / 43,843.55-65,765.32-20,135.39

Finding the Fourth Proportional to 43,843.55, 65,765.32 and 20,135.39

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Solution

The fourth proportional to 43,843.55, 65,765.32 and 20,135.39 is: 30,203.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,843.55 : 65,765.32 = 20,135.39 : x
  2. Step 2: Convert to fraction form
    43,843.55/65,765.32 = 20,135.39/x
  3. Step 3: Cross multiply
    43,843.55x = 65,765.32 × 20,135.39
  4. Step 4: Simplify right side
    43,843.55x = 1,324,209,987.51
  5. Step 5: Solve for x
    x = 1,324,209,987.51/43,843.55
  6. Step 6: Final answer
    x = 30,203.08

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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.