Finding the Fourth Proportional to 33.63, 46.43 and 31.14
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Solution
The fourth proportional to 33.63, 46.43 and 31.14 is: 42.99
Step by Step Solution
- Step 1: Write the proportion equation
33.63 : 46.43 = 31.14 : x - Step 2: Convert to fraction form
33.63/46.43 = 31.14/x - Step 3: Cross multiply
33.63x = 46.43 × 31.14 - Step 4: Simplify right side
33.63x = 1,445.67 - Step 5: Solve for x
x = 1,445.67/33.63 - Step 6: Final answer
x = 42.99
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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.