Home / 28,208.58-38,917.42-16,878.34

Finding the Fourth Proportional to 28,208.58, 38,917.42 and 16,878.34

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Solution

The fourth proportional to 28,208.58, 38,917.42 and 16,878.34 is: 23,285.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,208.58 : 38,917.42 = 16,878.34 : x
  2. Step 2: Convert to fraction form
    28,208.58/38,917.42 = 16,878.34/x
  3. Step 3: Cross multiply
    28,208.58x = 38,917.42 × 16,878.34
  4. Step 4: Simplify right side
    28,208.58x = 656,861,446.68
  5. Step 5: Solve for x
    x = 656,861,446.68/28,208.58
  6. Step 6: Final answer
    x = 23,285.87

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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.