Finding the Fourth Proportional to 42.40, 58.51 and 23.98
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Solution
The fourth proportional to 42.40, 58.51 and 23.98 is: 33.09
Step by Step Solution
- Step 1: Write the proportion equation
42.40 : 58.51 = 23.98 : x - Step 2: Convert to fraction form
42.40/58.51 = 23.98/x - Step 3: Cross multiply
42.40x = 58.51 × 23.98 - Step 4: Simplify right side
42.40x = 1,403.13 - Step 5: Solve for x
x = 1,403.13/42.40 - Step 6: Final answer
x = 33.09
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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.