Home / 30,021.74-41,431.96-19,934.38

Finding the Fourth Proportional to 30,021.74, 41,431.96 and 19,934.38

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Solution

The fourth proportional to 30,021.74, 41,431.96 and 19,934.38 is: 27,510.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,021.74 : 41,431.96 = 19,934.38 : x
  2. Step 2: Convert to fraction form
    30,021.74/41,431.96 = 19,934.38/x
  3. Step 3: Cross multiply
    30,021.74x = 41,431.96 × 19,934.38
  4. Step 4: Simplify right side
    30,021.74x = 825,920,434.78
  5. Step 5: Solve for x
    x = 825,920,434.78/30,021.74
  6. Step 6: Final answer
    x = 27,510.75

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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.