Home / 40,896.99-61,345.41-12,819.21

Finding the Fourth Proportional to 40,896.99, 61,345.41 and 12,819.21

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Solution

The fourth proportional to 40,896.99, 61,345.41 and 12,819.21 is: 19,228.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,896.99 : 61,345.41 = 12,819.21 : x
  2. Step 2: Convert to fraction form
    40,896.99/61,345.41 = 12,819.21/x
  3. Step 3: Cross multiply
    40,896.99x = 61,345.41 × 12,819.21
  4. Step 4: Simplify right side
    40,896.99x = 786,399,693.33
  5. Step 5: Solve for x
    x = 786,399,693.33/40,896.99
  6. Step 6: Final answer
    x = 19,228.79

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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.