Finding the Fourth Proportional to 18,920.71, 26,110.26 and 10,423.63
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Solution
The fourth proportional to 18,920.71, 26,110.26 and 10,423.63 is: 14,384.43
Step by Step Solution
- Step 1: Write the proportion equation
18,920.71 : 26,110.26 = 10,423.63 : x - Step 2: Convert to fraction form
18,920.71/26,110.26 = 10,423.63/x - Step 3: Cross multiply
18,920.71x = 26,110.26 × 10,423.63 - Step 4: Simplify right side
18,920.71x = 272,163,689.44 - Step 5: Solve for x
x = 272,163,689.44/18,920.71 - Step 6: Final answer
x = 14,384.43
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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.