Home / 21,729.03-32,608.14-7,689.00

Finding the Fourth Proportional to 21,729.03, 32,608.14 and 7,689.00

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Solution

The fourth proportional to 21,729.03, 32,608.14 and 7,689.00 is: 11,538.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,729.03 : 32,608.14 = 7,689.00 : x
  2. Step 2: Convert to fraction form
    21,729.03/32,608.14 = 7,689.00/x
  3. Step 3: Cross multiply
    21,729.03x = 32,608.14 × 7,689.00
  4. Step 4: Simplify right side
    21,729.03x = 250,723,871.65
  5. Step 5: Solve for x
    x = 250,723,871.65/21,729.03
  6. Step 6: Final answer
    x = 11,538.66

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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.