Home / 29,140.20-43,694.94-12,705

Finding the Fourth Proportional to 29,140.20, 43,694.94 and 12,705

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Solution

The fourth proportional to 29,140.20, 43,694.94 and 12,705 is: 19,050.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,140.20 : 43,694.94 = 12,705 : x
  2. Step 2: Convert to fraction form
    29,140.20/43,694.94 = 12,705/x
  3. Step 3: Cross multiply
    29,140.20x = 43,694.94 × 12,705
  4. Step 4: Simplify right side
    29,140.20x = 555,144,212.70
  5. Step 5: Solve for x
    x = 555,144,212.70/29,140.20
  6. Step 6: Final answer
    x = 19,050.80

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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.