Home / 21,949.76-32,911.68-7,908.68

Finding the Fourth Proportional to 21,949.76, 32,911.68 and 7,908.68

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Solution

The fourth proportional to 21,949.76, 32,911.68 and 7,908.68 is: 11,858.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,949.76 : 32,911.68 = 7,908.68 : x
  2. Step 2: Convert to fraction form
    21,949.76/32,911.68 = 7,908.68/x
  3. Step 3: Cross multiply
    21,949.76x = 32,911.68 × 7,908.68
  4. Step 4: Simplify right side
    21,949.76x = 260,287,945.38
  5. Step 5: Solve for x
    x = 260,287,945.38/21,949.76
  6. Step 6: Final answer
    x = 11,858.35

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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.