Home / 43,163.28-64,650.90-20,929.56

Finding the Fourth Proportional to 43,163.28, 64,650.90 and 20,929.56

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Solution

The fourth proportional to 43,163.28, 64,650.90 and 20,929.56 is: 31,348.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,163.28 : 64,650.90 = 20,929.56 : x
  2. Step 2: Convert to fraction form
    43,163.28/64,650.90 = 20,929.56/x
  3. Step 3: Cross multiply
    43,163.28x = 64,650.90 × 20,929.56
  4. Step 4: Simplify right side
    43,163.28x = 1,353,114,890.60
  5. Step 5: Solve for x
    x = 1,353,114,890.60/43,163.28
  6. Step 6: Final answer
    x = 31,348.75

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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.