Home / 43,847.70-65,771.55-20,155.20

Finding the Fourth Proportional to 43,847.70, 65,771.55 and 20,155.20

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Solution

The fourth proportional to 43,847.70, 65,771.55 and 20,155.20 is: 30,232.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,847.70 : 65,771.55 = 20,155.20 : x
  2. Step 2: Convert to fraction form
    43,847.70/65,771.55 = 20,155.20/x
  3. Step 3: Cross multiply
    43,847.70x = 65,771.55 × 20,155.20
  4. Step 4: Simplify right side
    43,847.70x = 1,325,638,744.56
  5. Step 5: Solve for x
    x = 1,325,638,744.56/43,847.70
  6. Step 6: Final answer
    x = 30,232.80

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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.