Home / 13,825.66-20,738.47-11,039.28

Finding the Fourth Proportional to 13,825.66, 20,738.47 and 11,039.28

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Solution

The fourth proportional to 13,825.66, 20,738.47 and 11,039.28 is: 16,558.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,825.66 : 20,738.47 = 11,039.28 : x
  2. Step 2: Convert to fraction form
    13,825.66/20,738.47 = 11,039.28/x
  3. Step 3: Cross multiply
    13,825.66x = 20,738.47 × 11,039.28
  4. Step 4: Simplify right side
    13,825.66x = 228,937,692.43
  5. Step 5: Solve for x
    x = 228,937,692.43/13,825.66
  6. Step 6: Final answer
    x = 16,558.90

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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.