Home / 28,474.07-39,294.72-17,143.79

Finding the Fourth Proportional to 28,474.07, 39,294.72 and 17,143.79

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Solution

The fourth proportional to 28,474.07, 39,294.72 and 17,143.79 is: 23,658.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,474.07 : 39,294.72 = 17,143.79 : x
  2. Step 2: Convert to fraction form
    28,474.07/39,294.72 = 17,143.79/x
  3. Step 3: Cross multiply
    28,474.07x = 39,294.72 × 17,143.79
  4. Step 4: Simplify right side
    28,474.07x = 673,660,231.32
  5. Step 5: Solve for x
    x = 673,660,231.32/28,474.07
  6. Step 6: Final answer
    x = 23,658.73

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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.