Home / 20,776.06-28,671.99-11,824.39

Finding the Fourth Proportional to 20,776.06, 28,671.99 and 11,824.39

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Solution

The fourth proportional to 20,776.06, 28,671.99 and 11,824.39 is: 16,318.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,776.06 : 28,671.99 = 11,824.39 : x
  2. Step 2: Convert to fraction form
    20,776.06/28,671.99 = 11,824.39/x
  3. Step 3: Cross multiply
    20,776.06x = 28,671.99 × 11,824.39
  4. Step 4: Simplify right side
    20,776.06x = 339,028,791.84
  5. Step 5: Solve for x
    x = 339,028,791.84/20,776.06
  6. Step 6: Final answer
    x = 16,318.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.