Home / 28,147.75-38,844.62-16,970.47

Finding the Fourth Proportional to 28,147.75, 38,844.62 and 16,970.47

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Solution

The fourth proportional to 28,147.75, 38,844.62 and 16,970.47 is: 23,419.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,147.75 : 38,844.62 = 16,970.47 : x
  2. Step 2: Convert to fraction form
    28,147.75/38,844.62 = 16,970.47/x
  3. Step 3: Cross multiply
    28,147.75x = 38,844.62 × 16,970.47
  4. Step 4: Simplify right side
    28,147.75x = 659,211,458.37
  5. Step 5: Solve for x
    x = 659,211,458.37/28,147.75
  6. Step 6: Final answer
    x = 23,419.69

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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.