Home / 30,389-41,938.44-17,817.80

Finding the Fourth Proportional to 30,389, 41,938.44 and 17,817.80

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Solution

The fourth proportional to 30,389, 41,938.44 and 17,817.80 is: 24,589.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,389 : 41,938.44 = 17,817.80 : x
  2. Step 2: Convert to fraction form
    30,389/41,938.44 = 17,817.80/x
  3. Step 3: Cross multiply
    30,389x = 41,938.44 × 17,817.80
  4. Step 4: Simplify right side
    30,389x = 747,250,736.23
  5. Step 5: Solve for x
    x = 747,250,736.23/30,389
  6. Step 6: Final answer
    x = 24,589.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.