Home / 47,604.60-71,431.35-20,969.25

Finding the Fourth Proportional to 47,604.60, 71,431.35 and 20,969.25

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Solution

The fourth proportional to 47,604.60, 71,431.35 and 20,969.25 is: 31,464.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,604.60 : 71,431.35 = 20,969.25 : x
  2. Step 2: Convert to fraction form
    47,604.60/71,431.35 = 20,969.25/x
  3. Step 3: Cross multiply
    47,604.60x = 71,431.35 × 20,969.25
  4. Step 4: Simplify right side
    47,604.60x = 1,497,861,835.99
  5. Step 5: Solve for x
    x = 1,497,861,835.99/47,604.60
  6. Step 6: Final answer
    x = 31,464.64

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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.