Home / 29,819.57-41,139.20-19,215.38

Finding the Fourth Proportional to 29,819.57, 41,139.20 and 19,215.38

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Solution

The fourth proportional to 29,819.57, 41,139.20 and 19,215.38 is: 26,509.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,819.57 : 41,139.20 = 19,215.38 : x
  2. Step 2: Convert to fraction form
    29,819.57/41,139.20 = 19,215.38/x
  3. Step 3: Cross multiply
    29,819.57x = 41,139.20 × 19,215.38
  4. Step 4: Simplify right side
    29,819.57x = 790,505,059.12
  5. Step 5: Solve for x
    x = 790,505,059.12/29,819.57
  6. Step 6: Final answer
    x = 26,509.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.