Home / 20,284.20-30,411.72-13,694.04

Finding the Fourth Proportional to 20,284.20, 30,411.72 and 13,694.04

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Solution

The fourth proportional to 20,284.20, 30,411.72 and 13,694.04 is: 20,531.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,284.20 : 30,411.72 = 13,694.04 : x
  2. Step 2: Convert to fraction form
    20,284.20/30,411.72 = 13,694.04/x
  3. Step 3: Cross multiply
    20,284.20x = 30,411.72 × 13,694.04
  4. Step 4: Simplify right side
    20,284.20x = 416,459,310.15
  5. Step 5: Solve for x
    x = 416,459,310.15/20,284.20
  6. Step 6: Final answer
    x = 20,531.22

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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.