Finding the Fourth Proportional to 29,245.72, 40,358.98 and 15,816.99
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Solution
The fourth proportional to 29,245.72, 40,358.98 and 15,816.99 is: 21,827.38
Step by Step Solution
- Step 1: Write the proportion equation
29,245.72 : 40,358.98 = 15,816.99 : x - Step 2: Convert to fraction form
29,245.72/40,358.98 = 15,816.99/x - Step 3: Cross multiply
29,245.72x = 40,358.98 × 15,816.99 - Step 4: Simplify right side
29,245.72x = 638,357,503.99 - Step 5: Solve for x
x = 638,357,503.99/29,245.72 - Step 6: Final answer
x = 21,827.38
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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.