Finding the Fourth Proportional to 42.34, 58.42 and 25.96
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Solution
The fourth proportional to 42.34, 58.42 and 25.96 is: 35.82
Step by Step Solution
- Step 1: Write the proportion equation
42.34 : 58.42 = 25.96 : x - Step 2: Convert to fraction form
42.34/58.42 = 25.96/x - Step 3: Cross multiply
42.34x = 58.42 × 25.96 - Step 4: Simplify right side
42.34x = 1,516.58 - Step 5: Solve for x
x = 1,516.58/42.34 - Step 6: Final answer
x = 35.82
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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.