Home / 43,850.20-65,699.70-20,428.60

Finding the Fourth Proportional to 43,850.20, 65,699.70 and 20,428.60

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Solution

The fourth proportional to 43,850.20, 65,699.70 and 20,428.60 is: 30,607.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,850.20 : 65,699.70 = 20,428.60 : x
  2. Step 2: Convert to fraction form
    43,850.20/65,699.70 = 20,428.60/x
  3. Step 3: Cross multiply
    43,850.20x = 65,699.70 × 20,428.60
  4. Step 4: Simplify right side
    43,850.20x = 1,342,152,891.42
  5. Step 5: Solve for x
    x = 1,342,152,891.42/43,850.20
  6. Step 6: Final answer
    x = 30,607.68

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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.