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Finding the Fourth Proportional to 28,086.62, 42,130.13 and 7,027.02

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Solution

The fourth proportional to 28,086.62, 42,130.13 and 7,027.02 is: 10,540.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,086.62 : 42,130.13 = 7,027.02 : x
  2. Step 2: Convert to fraction form
    28,086.62/42,130.13 = 7,027.02/x
  3. Step 3: Cross multiply
    28,086.62x = 42,130.13 × 7,027.02
  4. Step 4: Simplify right side
    28,086.62x = 296,049,230.98
  5. Step 5: Solve for x
    x = 296,049,230.98/28,086.62
  6. Step 6: Final answer
    x = 10,540.58

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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.