Finding the Fourth Proportional to 16,425.21, 22,670.34 and 10,455.60
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Solution
The fourth proportional to 16,425.21, 22,670.34 and 10,455.60 is: 14,430.99
Step by Step Solution
- Step 1: Write the proportion equation
16,425.21 : 22,670.34 = 10,455.60 : x - Step 2: Convert to fraction form
16,425.21/22,670.34 = 10,455.60/x - Step 3: Cross multiply
16,425.21x = 22,670.34 × 10,455.60 - Step 4: Simplify right side
16,425.21x = 237,032,006.90 - Step 5: Solve for x
x = 237,032,006.90/16,425.21 - Step 6: Final answer
x = 14,430.99
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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.