Finding the Fourth Proportional to 38.30, 57.49 and 33.99
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Solution
The fourth proportional to 38.30, 57.49 and 33.99 is: 51.02
Step by Step Solution
- Step 1: Write the proportion equation
38.30 : 57.49 = 33.99 : x - Step 2: Convert to fraction form
38.30/57.49 = 33.99/x - Step 3: Cross multiply
38.30x = 57.49 × 33.99 - Step 4: Simplify right side
38.30x = 1,954.31 - Step 5: Solve for x
x = 1,954.31/38.30 - Step 6: Final answer
x = 51.02
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.