Home / 39,584.69-54,627.11-21,679.84

Finding the Fourth Proportional to 39,584.69, 54,627.11 and 21,679.84

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Solution

The fourth proportional to 39,584.69, 54,627.11 and 21,679.84 is: 29,918.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,584.69 : 54,627.11 = 21,679.84 : x
  2. Step 2: Convert to fraction form
    39,584.69/54,627.11 = 21,679.84/x
  3. Step 3: Cross multiply
    39,584.69x = 54,627.11 × 21,679.84
  4. Step 4: Simplify right side
    39,584.69x = 1,184,307,004.46
  5. Step 5: Solve for x
    x = 1,184,307,004.46/39,584.69
  6. Step 6: Final answer
    x = 29,918.31

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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.