Finding the Fourth Proportional to 23,023.80, 31,771.62 and 13,588.92
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Solution
The fourth proportional to 23,023.80, 31,771.62 and 13,588.92 is: 18,751.99
Step by Step Solution
- Step 1: Write the proportion equation
23,023.80 : 31,771.62 = 13,588.92 : x - Step 2: Convert to fraction form
23,023.80/31,771.62 = 13,588.92/x - Step 3: Cross multiply
23,023.80x = 31,771.62 × 13,588.92 - Step 4: Simplify right side
23,023.80x = 431,742,002.45 - Step 5: Solve for x
x = 431,742,002.45/23,023.80 - Step 6: Final answer
x = 18,751.99
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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.