Home / 21,768.24-32,656.14-7,914

Finding the Fourth Proportional to 21,768.24, 32,656.14 and 7,914

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Solution

The fourth proportional to 21,768.24, 32,656.14 and 7,914 is: 11,872.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,768.24 : 32,656.14 = 7,914 : x
  2. Step 2: Convert to fraction form
    21,768.24/32,656.14 = 7,914/x
  3. Step 3: Cross multiply
    21,768.24x = 32,656.14 × 7,914
  4. Step 4: Simplify right side
    21,768.24x = 258,440,691.96
  5. Step 5: Solve for x
    x = 258,440,691.96/21,768.24
  6. Step 6: Final answer
    x = 11,872.37

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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.