Home / 21,356.44-29,473.20-11,925

Finding the Fourth Proportional to 21,356.44, 29,473.20 and 11,925

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Solution

The fourth proportional to 21,356.44, 29,473.20 and 11,925 is: 16,457.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,356.44 : 29,473.20 = 11,925 : x
  2. Step 2: Convert to fraction form
    21,356.44/29,473.20 = 11,925/x
  3. Step 3: Cross multiply
    21,356.44x = 29,473.20 × 11,925
  4. Step 4: Simplify right side
    21,356.44x = 351,467,910
  5. Step 5: Solve for x
    x = 351,467,910/21,356.44
  6. Step 6: Final answer
    x = 16,457.23

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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.