Home / 29,179.68-43,732.08-12,520.32

Finding the Fourth Proportional to 29,179.68, 43,732.08 and 12,520.32

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Solution

The fourth proportional to 29,179.68, 43,732.08 and 12,520.32 is: 18,764.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,179.68 : 43,732.08 = 12,520.32 : x
  2. Step 2: Convert to fraction form
    29,179.68/43,732.08 = 12,520.32/x
  3. Step 3: Cross multiply
    29,179.68x = 43,732.08 × 12,520.32
  4. Step 4: Simplify right side
    29,179.68x = 547,539,635.87
  5. Step 5: Solve for x
    x = 547,539,635.87/29,179.68
  6. Step 6: Final answer
    x = 18,764.42

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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.