Finding the Fourth Proportional to 46.23, 69.35 and 15.80
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Solution
The fourth proportional to 46.23, 69.35 and 15.80 is: 23.69
Step by Step Solution
- Step 1: Write the proportion equation
46.23 : 69.35 = 15.80 : x - Step 2: Convert to fraction form
46.23/69.35 = 15.80/x - Step 3: Cross multiply
46.23x = 69.35 × 15.80 - Step 4: Simplify right side
46.23x = 1,095.30 - Step 5: Solve for x
x = 1,095.30/46.23 - Step 6: Final answer
x = 23.69
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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.