Home / 30,391.70-41,939.45-19,067.30

Finding the Fourth Proportional to 30,391.70, 41,939.45 and 19,067.30

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Solution

The fourth proportional to 30,391.70, 41,939.45 and 19,067.30 is: 26,312.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,391.70 : 41,939.45 = 19,067.30 : x
  2. Step 2: Convert to fraction form
    30,391.70/41,939.45 = 19,067.30/x
  3. Step 3: Cross multiply
    30,391.70x = 41,939.45 × 19,067.30
  4. Step 4: Simplify right side
    30,391.70x = 799,671,865.29
  5. Step 5: Solve for x
    x = 799,671,865.29/30,391.70
  6. Step 6: Final answer
    x = 26,312.18

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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.