Home / 38,996.00-53,810.55-21,998.69

Finding the Fourth Proportional to 38,996.00, 53,810.55 and 21,998.69

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Solution

The fourth proportional to 38,996.00, 53,810.55 and 21,998.69 is: 30,355.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,996.00 : 53,810.55 = 21,998.69 : x
  2. Step 2: Convert to fraction form
    38,996.00/53,810.55 = 21,998.69/x
  3. Step 3: Cross multiply
    38,996.00x = 53,810.55 × 21,998.69
  4. Step 4: Simplify right side
    38,996.00x = 1,183,761,339.13
  5. Step 5: Solve for x
    x = 1,183,761,339.13/38,996.00
  6. Step 6: Final answer
    x = 30,355.97

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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.