Home / 26,431.89-39,647.07-9,791.55

Finding the Fourth Proportional to 26,431.89, 39,647.07 and 9,791.55

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Solution

The fourth proportional to 26,431.89, 39,647.07 and 9,791.55 is: 14,687.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,431.89 : 39,647.07 = 9,791.55 : x
  2. Step 2: Convert to fraction form
    26,431.89/39,647.07 = 9,791.55/x
  3. Step 3: Cross multiply
    26,431.89x = 39,647.07 × 9,791.55
  4. Step 4: Simplify right side
    26,431.89x = 388,206,268.26
  5. Step 5: Solve for x
    x = 388,206,268.26/26,431.89
  6. Step 6: Final answer
    x = 14,687.04

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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.