Home / 21,918.24-30,227.30-18,743.44

Finding the Fourth Proportional to 21,918.24, 30,227.30 and 18,743.44

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Solution

The fourth proportional to 21,918.24, 30,227.30 and 18,743.44 is: 25,848.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,918.24 : 30,227.30 = 18,743.44 : x
  2. Step 2: Convert to fraction form
    21,918.24/30,227.30 = 18,743.44/x
  3. Step 3: Cross multiply
    21,918.24x = 30,227.30 × 18,743.44
  4. Step 4: Simplify right side
    21,918.24x = 566,563,583.91
  5. Step 5: Solve for x
    x = 566,563,583.91/21,918.24
  6. Step 6: Final answer
    x = 25,848.95

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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.