Home / 28,654.67-39,542.23-15,906.89

Finding the Fourth Proportional to 28,654.67, 39,542.23 and 15,906.89

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Solution

The fourth proportional to 28,654.67, 39,542.23 and 15,906.89 is: 21,950.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,654.67 : 39,542.23 = 15,906.89 : x
  2. Step 2: Convert to fraction form
    28,654.67/39,542.23 = 15,906.89/x
  3. Step 3: Cross multiply
    28,654.67x = 39,542.23 × 15,906.89
  4. Step 4: Simplify right side
    28,654.67x = 628,993,902.96
  5. Step 5: Solve for x
    x = 628,993,902.96/28,654.67
  6. Step 6: Final answer
    x = 21,950.83

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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.