Home / 43,328.20-64,989.33-12,163.45

Finding the Fourth Proportional to 43,328.20, 64,989.33 and 12,163.45

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Solution

The fourth proportional to 43,328.20, 64,989.33 and 12,163.45 is: 18,244.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,328.20 : 64,989.33 = 12,163.45 : x
  2. Step 2: Convert to fraction form
    43,328.20/64,989.33 = 12,163.45/x
  3. Step 3: Cross multiply
    43,328.20x = 64,989.33 × 12,163.45
  4. Step 4: Simplify right side
    43,328.20x = 790,494,465.99
  5. Step 5: Solve for x
    x = 790,494,465.99/43,328.20
  6. Step 6: Final answer
    x = 18,244.34

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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.