Finding the Fourth Proportional to 28,540.08, 39,622.50 and 27,684.72
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Solution
The fourth proportional to 28,540.08, 39,622.50 and 27,684.72 is: 38,434.99
Step by Step Solution
- Step 1: Write the proportion equation
28,540.08 : 39,622.50 = 27,684.72 : x - Step 2: Convert to fraction form
28,540.08/39,622.50 = 27,684.72/x - Step 3: Cross multiply
28,540.08x = 39,622.50 × 27,684.72 - Step 4: Simplify right side
28,540.08x = 1,096,937,818.20 - Step 5: Solve for x
x = 1,096,937,818.20/28,540.08 - Step 6: Final answer
x = 38,434.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.