Home / 39,489.34-54,495.15-21,584.33

Finding the Fourth Proportional to 39,489.34, 54,495.15 and 21,584.33

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Solution

The fourth proportional to 39,489.34, 54,495.15 and 21,584.33 is: 29,786.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,489.34 : 54,495.15 = 21,584.33 : x
  2. Step 2: Convert to fraction form
    39,489.34/54,495.15 = 21,584.33/x
  3. Step 3: Cross multiply
    39,489.34x = 54,495.15 × 21,584.33
  4. Step 4: Simplify right side
    39,489.34x = 1,176,241,301.00
  5. Step 5: Solve for x
    x = 1,176,241,301.00/39,489.34
  6. Step 6: Final answer
    x = 29,786.30

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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.