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Finding the Fourth Proportional to 41,382.80, 62,074.20 and 13,680.80

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Solution

The fourth proportional to 41,382.80, 62,074.20 and 13,680.80 is: 20,521.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,382.80 : 62,074.20 = 13,680.80 : x
  2. Step 2: Convert to fraction form
    41,382.80/62,074.20 = 13,680.80/x
  3. Step 3: Cross multiply
    41,382.80x = 62,074.20 × 13,680.80
  4. Step 4: Simplify right side
    41,382.80x = 849,224,715.36
  5. Step 5: Solve for x
    x = 849,224,715.36/41,382.80
  6. Step 6: Final answer
    x = 20,521.20

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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.