Home / 29,629.78-40,889.73-17,690.89

Finding the Fourth Proportional to 29,629.78, 40,889.73 and 17,690.89

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Solution

The fourth proportional to 29,629.78, 40,889.73 and 17,690.89 is: 24,413.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,629.78 : 40,889.73 = 17,690.89 : x
  2. Step 2: Convert to fraction form
    29,629.78/40,889.73 = 17,690.89/x
  3. Step 3: Cross multiply
    29,629.78x = 40,889.73 × 17,690.89
  4. Step 4: Simplify right side
    29,629.78x = 723,375,715.56
  5. Step 5: Solve for x
    x = 723,375,715.56/29,629.78
  6. Step 6: Final answer
    x = 24,413.81

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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.