Finding the Fourth Proportional to 25,639, 38,458.50 and 7,171
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Solution
The fourth proportional to 25,639, 38,458.50 and 7,171 is: 10,756.50
Step by Step Solution
- Step 1: Write the proportion equation
25,639 : 38,458.50 = 7,171 : x - Step 2: Convert to fraction form
25,639/38,458.50 = 7,171/x - Step 3: Cross multiply
25,639x = 38,458.50 × 7,171 - Step 4: Simplify right side
25,639x = 275,785,903.50 - Step 5: Solve for x
x = 275,785,903.50/25,639 - Step 6: Final answer
x = 10,756.50
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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.