Home / 26,021.18-39,020.22-11,977.80

Finding the Fourth Proportional to 26,021.18, 39,020.22 and 11,977.80

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Solution

The fourth proportional to 26,021.18, 39,020.22 and 11,977.80 is: 17,961.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,021.18 : 39,020.22 = 11,977.80 : x
  2. Step 2: Convert to fraction form
    26,021.18/39,020.22 = 11,977.80/x
  3. Step 3: Cross multiply
    26,021.18x = 39,020.22 × 11,977.80
  4. Step 4: Simplify right side
    26,021.18x = 467,376,391.12
  5. Step 5: Solve for x
    x = 467,376,391.12/26,021.18
  6. Step 6: Final answer
    x = 17,961.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.