Home / 27,728.46-38,266.83-18,290.34

Finding the Fourth Proportional to 27,728.46, 38,266.83 and 18,290.34

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Solution

The fourth proportional to 27,728.46, 38,266.83 and 18,290.34 is: 25,241.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,728.46 : 38,266.83 = 18,290.34 : x
  2. Step 2: Convert to fraction form
    27,728.46/38,266.83 = 18,290.34/x
  3. Step 3: Cross multiply
    27,728.46x = 38,266.83 × 18,290.34
  4. Step 4: Simplify right side
    27,728.46x = 699,913,331.42
  5. Step 5: Solve for x
    x = 699,913,331.42/27,728.46
  6. Step 6: Final answer
    x = 25,241.70

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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.