Home / 21,738.64-32,607.96-11,872.53

Finding the Fourth Proportional to 21,738.64, 32,607.96 and 11,872.53

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Solution

The fourth proportional to 21,738.64, 32,607.96 and 11,872.53 is: 17,808.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,738.64 : 32,607.96 = 11,872.53 : x
  2. Step 2: Convert to fraction form
    21,738.64/32,607.96 = 11,872.53/x
  3. Step 3: Cross multiply
    21,738.64x = 32,607.96 × 11,872.53
  4. Step 4: Simplify right side
    21,738.64x = 387,138,983.34
  5. Step 5: Solve for x
    x = 387,138,983.34/21,738.64
  6. Step 6: Final answer
    x = 17,808.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.