Finding the Fourth Proportional to 32.76, 48.84 and 30.84
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Solution
The fourth proportional to 32.76, 48.84 and 30.84 is: 45.98
Step by Step Solution
- Step 1: Write the proportion equation
32.76 : 48.84 = 30.84 : x - Step 2: Convert to fraction form
32.76/48.84 = 30.84/x - Step 3: Cross multiply
32.76x = 48.84 × 30.84 - Step 4: Simplify right side
32.76x = 1,506.23 - Step 5: Solve for x
x = 1,506.23/32.76 - Step 6: Final answer
x = 45.98
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.