Home / 28,747.58-39,671.62-16,172.33

Finding the Fourth Proportional to 28,747.58, 39,671.62 and 16,172.33

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Solution

The fourth proportional to 28,747.58, 39,671.62 and 16,172.33 is: 22,317.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,747.58 : 39,671.62 = 16,172.33 : x
  2. Step 2: Convert to fraction form
    28,747.58/39,671.62 = 16,172.33/x
  3. Step 3: Cross multiply
    28,747.58x = 39,671.62 × 16,172.33
  4. Step 4: Simplify right side
    28,747.58x = 641,582,291.49
  5. Step 5: Solve for x
    x = 641,582,291.49/28,747.58
  6. Step 6: Final answer
    x = 22,317.79

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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.