Home / 38,998.24-53,813.40-21,998.68

Finding the Fourth Proportional to 38,998.24, 53,813.40 and 21,998.68

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Solution

The fourth proportional to 38,998.24, 53,813.40 and 21,998.68 is: 30,355.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,998.24 : 53,813.40 = 21,998.68 : x
  2. Step 2: Convert to fraction form
    38,998.24/53,813.40 = 21,998.68/x
  3. Step 3: Cross multiply
    38,998.24x = 53,813.40 × 21,998.68
  4. Step 4: Simplify right side
    38,998.24x = 1,183,823,766.31
  5. Step 5: Solve for x
    x = 1,183,823,766.31/38,998.24
  6. Step 6: Final answer
    x = 30,355.83

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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.