Finding the Fourth Proportional to 31.89, 43.99 and 24.99
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Solution
The fourth proportional to 31.89, 43.99 and 24.99 is: 34.47
Step by Step Solution
- Step 1: Write the proportion equation
31.89 : 43.99 = 24.99 : x - Step 2: Convert to fraction form
31.89/43.99 = 24.99/x - Step 3: Cross multiply
31.89x = 43.99 × 24.99 - Step 4: Simplify right side
31.89x = 1,099.31 - Step 5: Solve for x
x = 1,099.31/31.89 - Step 6: Final answer
x = 34.47
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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.