Home / 27,771.21-38,284.43-19,799.60

Finding the Fourth Proportional to 27,771.21, 38,284.43 and 19,799.60

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Solution

The fourth proportional to 27,771.21, 38,284.43 and 19,799.60 is: 27,295.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,771.21 : 38,284.43 = 19,799.60 : x
  2. Step 2: Convert to fraction form
    27,771.21/38,284.43 = 19,799.60/x
  3. Step 3: Cross multiply
    27,771.21x = 38,284.43 × 19,799.60
  4. Step 4: Simplify right side
    27,771.21x = 758,016,109.81
  5. Step 5: Solve for x
    x = 758,016,109.81/27,771.21
  6. Step 6: Final answer
    x = 27,295.03

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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.