Home / 30,017.73-41,426.43-19,930.38

Finding the Fourth Proportional to 30,017.73, 41,426.43 and 19,930.38

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Solution

The fourth proportional to 30,017.73, 41,426.43 and 19,930.38 is: 27,505.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,017.73 : 41,426.43 = 19,930.38 : x
  2. Step 2: Convert to fraction form
    30,017.73/41,426.43 = 19,930.38/x
  3. Step 3: Cross multiply
    30,017.73x = 41,426.43 × 19,930.38
  4. Step 4: Simplify right side
    30,017.73x = 825,644,491.94
  5. Step 5: Solve for x
    x = 825,644,491.94/30,017.73
  6. Step 6: Final answer
    x = 27,505.23

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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.