Home / 21,670.68-29,905.62-11,734.68

Finding the Fourth Proportional to 21,670.68, 29,905.62 and 11,734.68

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Solution

The fourth proportional to 21,670.68, 29,905.62 and 11,734.68 is: 16,193.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,670.68 : 29,905.62 = 11,734.68 : x
  2. Step 2: Convert to fraction form
    21,670.68/29,905.62 = 11,734.68/x
  3. Step 3: Cross multiply
    21,670.68x = 29,905.62 × 11,734.68
  4. Step 4: Simplify right side
    21,670.68x = 350,932,880.90
  5. Step 5: Solve for x
    x = 350,932,880.90/21,670.68
  6. Step 6: Final answer
    x = 16,193.90

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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.