Home / 28,739.98-39,660.79-16,164.73

Finding the Fourth Proportional to 28,739.98, 39,660.79 and 16,164.73

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Solution

The fourth proportional to 28,739.98, 39,660.79 and 16,164.73 is: 22,307.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,739.98 : 39,660.79 = 16,164.73 : x
  2. Step 2: Convert to fraction form
    28,739.98/39,660.79 = 16,164.73/x
  3. Step 3: Cross multiply
    28,739.98x = 39,660.79 × 16,164.73
  4. Step 4: Simplify right side
    28,739.98x = 641,105,961.94
  5. Step 5: Solve for x
    x = 641,105,961.94/28,739.98
  6. Step 6: Final answer
    x = 22,307.11

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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.