Home / 28,744.75-39,671.40-16,171.93

Finding the Fourth Proportional to 28,744.75, 39,671.40 and 16,171.93

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Solution

The fourth proportional to 28,744.75, 39,671.40 and 16,171.93 is: 22,319.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,744.75 : 39,671.40 = 16,171.93 : x
  2. Step 2: Convert to fraction form
    28,744.75/39,671.40 = 16,171.93/x
  3. Step 3: Cross multiply
    28,744.75x = 39,671.40 × 16,171.93
  4. Step 4: Simplify right side
    28,744.75x = 641,563,103.80
  5. Step 5: Solve for x
    x = 641,563,103.80/28,744.75
  6. Step 6: Final answer
    x = 22,319.31

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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.