Home / 27,729.46-38,268.21-18,291.34

Finding the Fourth Proportional to 27,729.46, 38,268.21 and 18,291.34

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Solution

The fourth proportional to 27,729.46, 38,268.21 and 18,291.34 is: 25,243.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,729.46 : 38,268.21 = 18,291.34 : x
  2. Step 2: Convert to fraction form
    27,729.46/38,268.21 = 18,291.34/x
  3. Step 3: Cross multiply
    27,729.46x = 38,268.21 × 18,291.34
  4. Step 4: Simplify right side
    27,729.46x = 699,976,840.30
  5. Step 5: Solve for x
    x = 699,976,840.30/27,729.46
  6. Step 6: Final answer
    x = 25,243.08

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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.