Home / 21,472.08-32,185.50-11,608.68

Finding the Fourth Proportional to 21,472.08, 32,185.50 and 11,608.68

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Solution

The fourth proportional to 21,472.08, 32,185.50 and 11,608.68 is: 17,400.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,472.08 : 32,185.50 = 11,608.68 : x
  2. Step 2: Convert to fraction form
    21,472.08/32,185.50 = 11,608.68/x
  3. Step 3: Cross multiply
    21,472.08x = 32,185.50 × 11,608.68
  4. Step 4: Simplify right side
    21,472.08x = 373,631,170.14
  5. Step 5: Solve for x
    x = 373,631,170.14/21,472.08
  6. Step 6: Final answer
    x = 17,400.79

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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.