Finding the Fourth Proportional to 28,151.93, 38,863.73 and 16,212.96
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Solution
The fourth proportional to 28,151.93, 38,863.73 and 16,212.96 is: 22,381.99
Step by Step Solution
- Step 1: Write the proportion equation
28,151.93 : 38,863.73 = 16,212.96 : x - Step 2: Convert to fraction form
28,151.93/38,863.73 = 16,212.96/x - Step 3: Cross multiply
28,151.93x = 38,863.73 × 16,212.96 - Step 4: Simplify right side
28,151.93x = 630,096,018.88 - Step 5: Solve for x
x = 630,096,018.88/28,151.93 - Step 6: Final answer
x = 22,381.99
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1.5x scale
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.