Finding the Fourth Proportional to 28,123.50, 42,187.68 and 7,347
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Solution
The fourth proportional to 28,123.50, 42,187.68 and 7,347 is: 11,021.13
Step by Step Solution
- Step 1: Write the proportion equation
28,123.50 : 42,187.68 = 7,347 : x - Step 2: Convert to fraction form
28,123.50/42,187.68 = 7,347/x - Step 3: Cross multiply
28,123.50x = 42,187.68 × 7,347 - Step 4: Simplify right side
28,123.50x = 309,952,884.96 - Step 5: Solve for x
x = 309,952,884.96/28,123.50 - Step 6: Final answer
x = 11,021.13
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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.