Home / 28,966.28-43,410.12-12,305.42

Finding the Fourth Proportional to 28,966.28, 43,410.12 and 12,305.42

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Solution

The fourth proportional to 28,966.28, 43,410.12 and 12,305.42 is: 18,441.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,966.28 : 43,410.12 = 12,305.42 : x
  2. Step 2: Convert to fraction form
    28,966.28/43,410.12 = 12,305.42/x
  3. Step 3: Cross multiply
    28,966.28x = 43,410.12 × 12,305.42
  4. Step 4: Simplify right side
    28,966.28x = 534,179,758.85
  5. Step 5: Solve for x
    x = 534,179,758.85/28,966.28
  6. Step 6: Final answer
    x = 18,441.43

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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.