Home / 20,021.58-27,629.46-11,068.88

Finding the Fourth Proportional to 20,021.58, 27,629.46 and 11,068.88

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Solution

The fourth proportional to 20,021.58, 27,629.46 and 11,068.88 is: 15,274.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,021.58 : 27,629.46 = 11,068.88 : x
  2. Step 2: Convert to fraction form
    20,021.58/27,629.46 = 11,068.88/x
  3. Step 3: Cross multiply
    20,021.58x = 27,629.46 × 11,068.88
  4. Step 4: Simplify right side
    20,021.58x = 305,827,177.20
  5. Step 5: Solve for x
    x = 305,827,177.20/20,021.58
  6. Step 6: Final answer
    x = 15,274.88

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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.