Home / 43,404.36-65,109.78-18,441.60

Finding the Fourth Proportional to 43,404.36, 65,109.78 and 18,441.60

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Solution

The fourth proportional to 43,404.36, 65,109.78 and 18,441.60 is: 27,663.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,404.36 : 65,109.78 = 18,441.60 : x
  2. Step 2: Convert to fraction form
    43,404.36/65,109.78 = 18,441.60/x
  3. Step 3: Cross multiply
    43,404.36x = 65,109.78 × 18,441.60
  4. Step 4: Simplify right side
    43,404.36x = 1,200,728,518.85
  5. Step 5: Solve for x
    x = 1,200,728,518.85/43,404.36
  6. Step 6: Final answer
    x = 27,663.78

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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.