Finding the Fourth Proportional to 33.74, 50.61 and 21.68
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Solution
The fourth proportional to 33.74, 50.61 and 21.68 is: 32.52
Step by Step Solution
- Step 1: Write the proportion equation
33.74 : 50.61 = 21.68 : x - Step 2: Convert to fraction form
33.74/50.61 = 21.68/x - Step 3: Cross multiply
33.74x = 50.61 × 21.68 - Step 4: Simplify right side
33.74x = 1,097.22 - Step 5: Solve for x
x = 1,097.22/33.74 - Step 6: Final answer
x = 32.52
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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.