Home / 47,367.36-71,073.20-20,709.90

Finding the Fourth Proportional to 47,367.36, 71,073.20 and 20,709.90

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Solution

The fourth proportional to 47,367.36, 71,073.20 and 20,709.90 is: 31,074.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,367.36 : 71,073.20 = 20,709.90 : x
  2. Step 2: Convert to fraction form
    47,367.36/71,073.20 = 20,709.90/x
  3. Step 3: Cross multiply
    47,367.36x = 71,073.20 × 20,709.90
  4. Step 4: Simplify right side
    47,367.36x = 1,471,918,916.45
  5. Step 5: Solve for x
    x = 1,471,918,916.45/47,367.36
  6. Step 6: Final answer
    x = 31,074.54

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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.