Home / 21,102.26-29,118.62-11,670.89

Finding the Fourth Proportional to 21,102.26, 29,118.62 and 11,670.89

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Solution

The fourth proportional to 21,102.26, 29,118.62 and 11,670.89 is: 16,104.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,102.26 : 29,118.62 = 11,670.89 : x
  2. Step 2: Convert to fraction form
    21,102.26/29,118.62 = 11,670.89/x
  3. Step 3: Cross multiply
    21,102.26x = 29,118.62 × 11,670.89
  4. Step 4: Simplify right side
    21,102.26x = 339,840,094.56
  5. Step 5: Solve for x
    x = 339,840,094.56/21,102.26
  6. Step 6: Final answer
    x = 16,104.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.