Home / 21,860.08-32,796.60-7,071.28

Finding the Fourth Proportional to 21,860.08, 32,796.60 and 7,071.28

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Solution

The fourth proportional to 21,860.08, 32,796.60 and 7,071.28 is: 10,609.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,860.08 : 32,796.60 = 7,071.28 : x
  2. Step 2: Convert to fraction form
    21,860.08/32,796.60 = 7,071.28/x
  3. Step 3: Cross multiply
    21,860.08x = 32,796.60 × 7,071.28
  4. Step 4: Simplify right side
    21,860.08x = 231,913,941.65
  5. Step 5: Solve for x
    x = 231,913,941.65/21,860.08
  6. Step 6: Final answer
    x = 10,609.02

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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.