Home / 43,986.07-65,929.59-21,815.36

Finding the Fourth Proportional to 43,986.07, 65,929.59 and 21,815.36

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Solution

The fourth proportional to 43,986.07, 65,929.59 and 21,815.36 is: 32,698.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,986.07 : 65,929.59 = 21,815.36 : x
  2. Step 2: Convert to fraction form
    43,986.07/65,929.59 = 21,815.36/x
  3. Step 3: Cross multiply
    43,986.07x = 65,929.59 × 21,815.36
  4. Step 4: Simplify right side
    43,986.07x = 1,438,277,410.85
  5. Step 5: Solve for x
    x = 1,438,277,410.85/43,986.07
  6. Step 6: Final answer
    x = 32,698.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.