Home / 25,815.72-38,728.62-9,176.52

Finding the Fourth Proportional to 25,815.72, 38,728.62 and 9,176.52

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Solution

The fourth proportional to 25,815.72, 38,728.62 and 9,176.52 is: 13,766.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,815.72 : 38,728.62 = 9,176.52 : x
  2. Step 2: Convert to fraction form
    25,815.72/38,728.62 = 9,176.52/x
  3. Step 3: Cross multiply
    25,815.72x = 38,728.62 × 9,176.52
  4. Step 4: Simplify right side
    25,815.72x = 355,393,956.00
  5. Step 5: Solve for x
    x = 355,393,956.00/25,815.72
  6. Step 6: Final answer
    x = 13,766.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.