Home / 28,067.80-42,108.60-8,346.24

Finding the Fourth Proportional to 28,067.80, 42,108.60 and 8,346.24

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Solution

The fourth proportional to 28,067.80, 42,108.60 and 8,346.24 is: 12,521.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,067.80 : 42,108.60 = 8,346.24 : x
  2. Step 2: Convert to fraction form
    28,067.80/42,108.60 = 8,346.24/x
  3. Step 3: Cross multiply
    28,067.80x = 42,108.60 × 8,346.24
  4. Step 4: Simplify right side
    28,067.80x = 351,448,481.66
  5. Step 5: Solve for x
    x = 351,448,481.66/28,067.80
  6. Step 6: Final answer
    x = 12,521.41

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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.