Home / 43,845.57-65,778.08-20,459.25

Finding the Fourth Proportional to 43,845.57, 65,778.08 and 20,459.25

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Solution

The fourth proportional to 43,845.57, 65,778.08 and 20,459.25 is: 30,693.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,845.57 : 65,778.08 = 20,459.25 : x
  2. Step 2: Convert to fraction form
    43,845.57/65,778.08 = 20,459.25/x
  3. Step 3: Cross multiply
    43,845.57x = 65,778.08 × 20,459.25
  4. Step 4: Simplify right side
    43,845.57x = 1,345,770,080.94
  5. Step 5: Solve for x
    x = 1,345,770,080.94/43,845.57
  6. Step 6: Final answer
    x = 30,693.41

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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.