Home / 39,664.89-54,737.30-21,759.91

Finding the Fourth Proportional to 39,664.89, 54,737.30 and 21,759.91

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Solution

The fourth proportional to 39,664.89, 54,737.30 and 21,759.91 is: 30,028.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,664.89 : 54,737.30 = 21,759.91 : x
  2. Step 2: Convert to fraction form
    39,664.89/54,737.30 = 21,759.91/x
  3. Step 3: Cross multiply
    39,664.89x = 54,737.30 × 21,759.91
  4. Step 4: Simplify right side
    39,664.89x = 1,191,078,639.20
  5. Step 5: Solve for x
    x = 1,191,078,639.20/39,664.89
  6. Step 6: Final answer
    x = 30,028.54

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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.