Home / 21,777.04-32,668.80-7,735.89

Finding the Fourth Proportional to 21,777.04, 32,668.80 and 7,735.89

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Solution

The fourth proportional to 21,777.04, 32,668.80 and 7,735.89 is: 11,604.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,777.04 : 32,668.80 = 7,735.89 : x
  2. Step 2: Convert to fraction form
    21,777.04/32,668.80 = 7,735.89/x
  3. Step 3: Cross multiply
    21,777.04x = 32,668.80 × 7,735.89
  4. Step 4: Simplify right side
    21,777.04x = 252,722,243.23
  5. Step 5: Solve for x
    x = 252,722,243.23/21,777.04
  6. Step 6: Final answer
    x = 11,604.99

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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.