Home / 19,629.12-27,090.64-11,245.64

Finding the Fourth Proportional to 19,629.12, 27,090.64 and 11,245.64

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Solution

The fourth proportional to 19,629.12, 27,090.64 and 11,245.64 is: 15,520.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,629.12 : 27,090.64 = 11,245.64 : x
  2. Step 2: Convert to fraction form
    19,629.12/27,090.64 = 11,245.64/x
  3. Step 3: Cross multiply
    19,629.12x = 27,090.64 × 11,245.64
  4. Step 4: Simplify right side
    19,629.12x = 304,651,584.81
  5. Step 5: Solve for x
    x = 304,651,584.81/19,629.12
  6. Step 6: Final answer
    x = 15,520.39

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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.