Home / 28,067.38-42,107.99-8,345.84

Finding the Fourth Proportional to 28,067.38, 42,107.99 and 8,345.84

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Solution

The fourth proportional to 28,067.38, 42,107.99 and 8,345.84 is: 12,520.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,067.38 : 42,107.99 = 8,345.84 : x
  2. Step 2: Convert to fraction form
    28,067.38/42,107.99 = 8,345.84/x
  3. Step 3: Cross multiply
    28,067.38x = 42,107.99 × 8,345.84
  4. Step 4: Simplify right side
    28,067.38x = 351,426,294.99
  5. Step 5: Solve for x
    x = 351,426,294.99/28,067.38
  6. Step 6: Final answer
    x = 12,520.81

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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.