Home / 28,654.36-39,541.24-15,906.79

Finding the Fourth Proportional to 28,654.36, 39,541.24 and 15,906.79

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Solution

The fourth proportional to 28,654.36, 39,541.24 and 15,906.79 is: 21,950.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,654.36 : 39,541.24 = 15,906.79 : x
  2. Step 2: Convert to fraction form
    28,654.36/39,541.24 = 15,906.79/x
  3. Step 3: Cross multiply
    28,654.36x = 39,541.24 × 15,906.79
  4. Step 4: Simplify right side
    28,654.36x = 628,974,270.33
  5. Step 5: Solve for x
    x = 628,974,270.33/28,654.36
  6. Step 6: Final answer
    x = 21,950.39

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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.