Home / 19,636.60-29,411.70-13,761.40

Finding the Fourth Proportional to 19,636.60, 29,411.70 and 13,761.40

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Solution

The fourth proportional to 19,636.60, 29,411.70 and 13,761.40 is: 20,611.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,636.60 : 29,411.70 = 13,761.40 : x
  2. Step 2: Convert to fraction form
    19,636.60/29,411.70 = 13,761.40/x
  3. Step 3: Cross multiply
    19,636.60x = 29,411.70 × 13,761.40
  4. Step 4: Simplify right side
    19,636.60x = 404,746,168.38
  5. Step 5: Solve for x
    x = 404,746,168.38/19,636.60
  6. Step 6: Final answer
    x = 20,611.83

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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.