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Finding the Fourth Proportional to 28,523.94, 42,796.11 and 12,727.57

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Solution

The fourth proportional to 28,523.94, 42,796.11 and 12,727.57 is: 19,095.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,523.94 : 42,796.11 = 12,727.57 : x
  2. Step 2: Convert to fraction form
    28,523.94/42,796.11 = 12,727.57/x
  3. Step 3: Cross multiply
    28,523.94x = 42,796.11 × 12,727.57
  4. Step 4: Simplify right side
    28,523.94x = 544,690,485.75
  5. Step 5: Solve for x
    x = 544,690,485.75/28,523.94
  6. Step 6: Final answer
    x = 19,095.91

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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.