Home / 28,067.90-42,100.25-16,971.60

Finding the Fourth Proportional to 28,067.90, 42,100.25 and 16,971.60

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Solution

The fourth proportional to 28,067.90, 42,100.25 and 16,971.60 is: 25,456.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,067.90 : 42,100.25 = 16,971.60 : x
  2. Step 2: Convert to fraction form
    28,067.90/42,100.25 = 16,971.60/x
  3. Step 3: Cross multiply
    28,067.90x = 42,100.25 × 16,971.60
  4. Step 4: Simplify right side
    28,067.90x = 714,508,675.92
  5. Step 5: Solve for x
    x = 714,508,675.92/28,067.90
  6. Step 6: Final answer
    x = 25,456.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.