Home / 39,539.76-54,564.38-21,634.54

Finding the Fourth Proportional to 39,539.76, 54,564.38 and 21,634.54

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Solution

The fourth proportional to 39,539.76, 54,564.38 and 21,634.54 is: 29,855.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,539.76 : 54,564.38 = 21,634.54 : x
  2. Step 2: Convert to fraction form
    39,539.76/54,564.38 = 21,634.54/x
  3. Step 3: Cross multiply
    39,539.76x = 54,564.38 × 21,634.54
  4. Step 4: Simplify right side
    39,539.76x = 1,180,475,261.69
  5. Step 5: Solve for x
    x = 1,180,475,261.69/39,539.76
  6. Step 6: Final answer
    x = 29,855.40

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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.