Home / 39,664-54,737.04-21,759.92

Finding the Fourth Proportional to 39,664, 54,737.04 and 21,759.92

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Solution

The fourth proportional to 39,664, 54,737.04 and 21,759.92 is: 30,029.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,664 : 54,737.04 = 21,759.92 : x
  2. Step 2: Convert to fraction form
    39,664/54,737.04 = 21,759.92/x
  3. Step 3: Cross multiply
    39,664x = 54,737.04 × 21,759.92
  4. Step 4: Simplify right side
    39,664x = 1,191,073,611.44
  5. Step 5: Solve for x
    x = 1,191,073,611.44/39,664
  6. Step 6: Final answer
    x = 30,029.08

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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.