Home / 39,539.45-54,564.40-21,634.53

Finding the Fourth Proportional to 39,539.45, 54,564.40 and 21,634.53

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Solution

The fourth proportional to 39,539.45, 54,564.40 and 21,634.53 is: 29,855.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,539.45 : 54,564.40 = 21,634.53 : x
  2. Step 2: Convert to fraction form
    39,539.45/54,564.40 = 21,634.53/x
  3. Step 3: Cross multiply
    39,539.45x = 54,564.40 × 21,634.53
  4. Step 4: Simplify right side
    39,539.45x = 1,180,475,148.73
  5. Step 5: Solve for x
    x = 1,180,475,148.73/39,539.45
  6. Step 6: Final answer
    x = 29,855.63

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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.