Home / 28,879.32-39,853.62-16,942.89

Finding the Fourth Proportional to 28,879.32, 39,853.62 and 16,942.89

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Solution

The fourth proportional to 28,879.32, 39,853.62 and 16,942.89 is: 23,381.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,879.32 : 39,853.62 = 16,942.89 : x
  2. Step 2: Convert to fraction form
    28,879.32/39,853.62 = 16,942.89/x
  3. Step 3: Cross multiply
    28,879.32x = 39,853.62 × 16,942.89
  4. Step 4: Simplify right side
    28,879.32x = 675,235,499.76
  5. Step 5: Solve for x
    x = 675,235,499.76/28,879.32
  6. Step 6: Final answer
    x = 23,381.28

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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.