Finding the Fourth Proportional to 46.29, 69.40 and 15.84
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Solution
The fourth proportional to 46.29, 69.40 and 15.84 is: 23.75
Step by Step Solution
- Step 1: Write the proportion equation
46.29 : 69.40 = 15.84 : x - Step 2: Convert to fraction form
46.29/69.40 = 15.84/x - Step 3: Cross multiply
46.29x = 69.40 × 15.84 - Step 4: Simplify right side
46.29x = 1,099.30 - Step 5: Solve for x
x = 1,099.30/46.29 - Step 6: Final answer
x = 23.75
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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.