Finding the Fourth Proportional to 18,337.60, 27,506.40 and 14,619.70
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Solution
The fourth proportional to 18,337.60, 27,506.40 and 14,619.70 is: 21,929.55
Step by Step Solution
- Step 1: Write the proportion equation
18,337.60 : 27,506.40 = 14,619.70 : x - Step 2: Convert to fraction form
18,337.60/27,506.40 = 14,619.70/x - Step 3: Cross multiply
18,337.60x = 27,506.40 × 14,619.70 - Step 4: Simplify right side
18,337.60x = 402,135,316.08 - Step 5: Solve for x
x = 402,135,316.08/18,337.60 - Step 6: Final answer
x = 21,929.55
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1.5x scale
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.