Home / 20,021.37-27,629.04-11,068.75

Finding the Fourth Proportional to 20,021.37, 27,629.04 and 11,068.75

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Solution

The fourth proportional to 20,021.37, 27,629.04 and 11,068.75 is: 15,274.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,021.37 : 27,629.04 = 11,068.75 : x
  2. Step 2: Convert to fraction form
    20,021.37/27,629.04 = 11,068.75/x
  3. Step 3: Cross multiply
    20,021.37x = 27,629.04 × 11,068.75
  4. Step 4: Simplify right side
    20,021.37x = 305,818,936.50
  5. Step 5: Solve for x
    x = 305,818,936.50/20,021.37
  6. Step 6: Final answer
    x = 15,274.63

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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.