Home / 21,964.06-32,947.89-7,172.65

Finding the Fourth Proportional to 21,964.06, 32,947.89 and 7,172.65

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Solution

The fourth proportional to 21,964.06, 32,947.89 and 7,172.65 is: 10,759.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,964.06 : 32,947.89 = 7,172.65 : x
  2. Step 2: Convert to fraction form
    21,964.06/32,947.89 = 7,172.65/x
  3. Step 3: Cross multiply
    21,964.06x = 32,947.89 × 7,172.65
  4. Step 4: Simplify right side
    21,964.06x = 236,323,683.21
  5. Step 5: Solve for x
    x = 236,323,683.21/21,964.06
  6. Step 6: Final answer
    x = 10,759.56

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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.