Finding the Fourth Proportional to 38.76, 58.04 and 33.09
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Solution
The fourth proportional to 38.76, 58.04 and 33.09 is: 49.55
Step by Step Solution
- Step 1: Write the proportion equation
38.76 : 58.04 = 33.09 : x - Step 2: Convert to fraction form
38.76/58.04 = 33.09/x - Step 3: Cross multiply
38.76x = 58.04 × 33.09 - Step 4: Simplify right side
38.76x = 1,920.54 - Step 5: Solve for x
x = 1,920.54/38.76 - Step 6: Final answer
x = 49.55
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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.