Home / 21,056.19-29,058.64-12,104.53

Finding the Fourth Proportional to 21,056.19, 29,058.64 and 12,104.53

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Solution

The fourth proportional to 21,056.19, 29,058.64 and 12,104.53 is: 16,704.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,056.19 : 29,058.64 = 12,104.53 : x
  2. Step 2: Convert to fraction form
    21,056.19/29,058.64 = 12,104.53/x
  3. Step 3: Cross multiply
    21,056.19x = 29,058.64 × 12,104.53
  4. Step 4: Simplify right side
    21,056.19x = 351,741,179.64
  5. Step 5: Solve for x
    x = 351,741,179.64/21,056.19
  6. Step 6: Final answer
    x = 16,704.88

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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.