Home / 28,241.75-38,970.71-16,910.96

Finding the Fourth Proportional to 28,241.75, 38,970.71 and 16,910.96

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Solution

The fourth proportional to 28,241.75, 38,970.71 and 16,910.96 is: 23,335.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,241.75 : 38,970.71 = 16,910.96 : x
  2. Step 2: Convert to fraction form
    28,241.75/38,970.71 = 16,910.96/x
  3. Step 3: Cross multiply
    28,241.75x = 38,970.71 × 16,910.96
  4. Step 4: Simplify right side
    28,241.75x = 659,032,257.69
  5. Step 5: Solve for x
    x = 659,032,257.69/28,241.75
  6. Step 6: Final answer
    x = 23,335.39

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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.