Home / 21,450.40-32,179.89-7,410.94

Finding the Fourth Proportional to 21,450.40, 32,179.89 and 7,410.94

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Solution

The fourth proportional to 21,450.40, 32,179.89 and 7,410.94 is: 11,117.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,450.40 : 32,179.89 = 7,410.94 : x
  2. Step 2: Convert to fraction form
    21,450.40/32,179.89 = 7,410.94/x
  3. Step 3: Cross multiply
    21,450.40x = 32,179.89 × 7,410.94
  4. Step 4: Simplify right side
    21,450.40x = 238,483,234.00
  5. Step 5: Solve for x
    x = 238,483,234.00/21,450.40
  6. Step 6: Final answer
    x = 11,117.89

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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.