Home / 21,972.11-32,949.94-7,177.06

Finding the Fourth Proportional to 21,972.11, 32,949.94 and 7,177.06

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Solution

The fourth proportional to 21,972.11, 32,949.94 and 7,177.06 is: 10,762.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,972.11 : 32,949.94 = 7,177.06 : x
  2. Step 2: Convert to fraction form
    21,972.11/32,949.94 = 7,177.06/x
  3. Step 3: Cross multiply
    21,972.11x = 32,949.94 × 7,177.06
  4. Step 4: Simplify right side
    21,972.11x = 236,483,547.73
  5. Step 5: Solve for x
    x = 236,483,547.73/21,972.11
  6. Step 6: Final answer
    x = 10,762.90

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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.