Home / 39,489.09-54,494.81-21,584.08

Finding the Fourth Proportional to 39,489.09, 54,494.81 and 21,584.08

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Solution

The fourth proportional to 39,489.09, 54,494.81 and 21,584.08 is: 29,785.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,489.09 : 54,494.81 = 21,584.08 : x
  2. Step 2: Convert to fraction form
    39,489.09/54,494.81 = 21,584.08/x
  3. Step 3: Cross multiply
    39,489.09x = 54,494.81 × 21,584.08
  4. Step 4: Simplify right side
    39,489.09x = 1,176,220,230.70
  5. Step 5: Solve for x
    x = 1,176,220,230.70/39,489.09
  6. Step 6: Final answer
    x = 29,785.96

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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.