Home / 22,144.23-30,561.44-13,644.55

Finding the Fourth Proportional to 22,144.23, 30,561.44 and 13,644.55

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Solution

The fourth proportional to 22,144.23, 30,561.44 and 13,644.55 is: 18,830.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,144.23 : 30,561.44 = 13,644.55 : x
  2. Step 2: Convert to fraction form
    22,144.23/30,561.44 = 13,644.55/x
  3. Step 3: Cross multiply
    22,144.23x = 30,561.44 × 13,644.55
  4. Step 4: Simplify right side
    22,144.23x = 416,996,875.12
  5. Step 5: Solve for x
    x = 416,996,875.12/22,144.23
  6. Step 6: Final answer
    x = 18,830.95

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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.