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Finding the Fourth Proportional to 28,067.21, 42,092.04 and 9,342.87

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Solution

The fourth proportional to 28,067.21, 42,092.04 and 9,342.87 is: 14,011.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,067.21 : 42,092.04 = 9,342.87 : x
  2. Step 2: Convert to fraction form
    28,067.21/42,092.04 = 9,342.87/x
  3. Step 3: Cross multiply
    28,067.21x = 42,092.04 × 9,342.87
  4. Step 4: Simplify right side
    28,067.21x = 393,260,334.95
  5. Step 5: Solve for x
    x = 393,260,334.95/28,067.21
  6. Step 6: Final answer
    x = 14,011.38

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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.