Home / 19,968.84-29,986.68-19,174.20

Finding the Fourth Proportional to 19,968.84, 29,986.68 and 19,174.20

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Solution

The fourth proportional to 19,968.84, 29,986.68 and 19,174.20 is: 28,793.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,968.84 : 29,986.68 = 19,174.20 : x
  2. Step 2: Convert to fraction form
    19,968.84/29,986.68 = 19,174.20/x
  3. Step 3: Cross multiply
    19,968.84x = 29,986.68 × 19,174.20
  4. Step 4: Simplify right side
    19,968.84x = 574,970,599.66
  5. Step 5: Solve for x
    x = 574,970,599.66/19,968.84
  6. Step 6: Final answer
    x = 28,793.39

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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.