Home / 29,172.30-43,752.30-12,540.17

Finding the Fourth Proportional to 29,172.30, 43,752.30 and 12,540.17

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Solution

The fourth proportional to 29,172.30, 43,752.30 and 12,540.17 is: 18,807.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,172.30 : 43,752.30 = 12,540.17 : x
  2. Step 2: Convert to fraction form
    29,172.30/43,752.30 = 12,540.17/x
  3. Step 3: Cross multiply
    29,172.30x = 43,752.30 × 12,540.17
  4. Step 4: Simplify right side
    29,172.30x = 548,661,166.68
  5. Step 5: Solve for x
    x = 548,661,166.68/29,172.30
  6. Step 6: Final answer
    x = 18,807.61

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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.