Home / 39,539.20-54,564.06-21,634.28

Finding the Fourth Proportional to 39,539.20, 54,564.06 and 21,634.28

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Solution

The fourth proportional to 39,539.20, 54,564.06 and 21,634.28 is: 29,855.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,539.20 : 54,564.06 = 21,634.28 : x
  2. Step 2: Convert to fraction form
    39,539.20/54,564.06 = 21,634.28/x
  3. Step 3: Cross multiply
    39,539.20x = 54,564.06 × 21,634.28
  4. Step 4: Simplify right side
    39,539.20x = 1,180,454,151.98
  5. Step 5: Solve for x
    x = 1,180,454,151.98/39,539.20
  6. Step 6: Final answer
    x = 29,855.29

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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.