Home / 23,034.89-31,775.73-15,391.33

Finding the Fourth Proportional to 23,034.89, 31,775.73 and 15,391.33

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Solution

The fourth proportional to 23,034.89, 31,775.73 and 15,391.33 is: 21,231.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,034.89 : 31,775.73 = 15,391.33 : x
  2. Step 2: Convert to fraction form
    23,034.89/31,775.73 = 15,391.33/x
  3. Step 3: Cross multiply
    23,034.89x = 31,775.73 × 15,391.33
  4. Step 4: Simplify right side
    23,034.89x = 489,070,609.26
  5. Step 5: Solve for x
    x = 489,070,609.26/23,034.89
  6. Step 6: Final answer
    x = 21,231.73

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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.