Home / 21,236.56-29,305.74-11,804.92

Finding the Fourth Proportional to 21,236.56, 29,305.74 and 11,804.92

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Solution

The fourth proportional to 21,236.56, 29,305.74 and 11,804.92 is: 16,290.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,236.56 : 29,305.74 = 11,804.92 : x
  2. Step 2: Convert to fraction form
    21,236.56/29,305.74 = 11,804.92/x
  3. Step 3: Cross multiply
    21,236.56x = 29,305.74 × 11,804.92
  4. Step 4: Simplify right side
    21,236.56x = 345,951,916.24
  5. Step 5: Solve for x
    x = 345,951,916.24/21,236.56
  6. Step 6: Final answer
    x = 16,290.39

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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.