Home / 19,704.40-29,591.82-18,911.62

Finding the Fourth Proportional to 19,704.40, 29,591.82 and 18,911.62

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Solution

The fourth proportional to 19,704.40, 29,591.82 and 18,911.62 is: 28,401.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,704.40 : 29,591.82 = 18,911.62 : x
  2. Step 2: Convert to fraction form
    19,704.40/29,591.82 = 18,911.62/x
  3. Step 3: Cross multiply
    19,704.40x = 29,591.82 × 18,911.62
  4. Step 4: Simplify right side
    19,704.40x = 559,629,254.95
  5. Step 5: Solve for x
    x = 559,629,254.95/19,704.40
  6. Step 6: Final answer
    x = 28,401.23

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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.