Home / 39,584.30-54,626.40-21,679.29

Finding the Fourth Proportional to 39,584.30, 54,626.40 and 21,679.29

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Solution

The fourth proportional to 39,584.30, 54,626.40 and 21,679.29 is: 29,917.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,584.30 : 54,626.40 = 21,679.29 : x
  2. Step 2: Convert to fraction form
    39,584.30/54,626.40 = 21,679.29/x
  3. Step 3: Cross multiply
    39,584.30x = 54,626.40 × 21,679.29
  4. Step 4: Simplify right side
    39,584.30x = 1,184,261,567.26
  5. Step 5: Solve for x
    x = 1,184,261,567.26/39,584.30
  6. Step 6: Final answer
    x = 29,917.46

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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.