Home / 20,273.88-27,983.84-11,777.96

Finding the Fourth Proportional to 20,273.88, 27,983.84 and 11,777.96

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Solution

The fourth proportional to 20,273.88, 27,983.84 and 11,777.96 is: 16,257.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,273.88 : 27,983.84 = 11,777.96 : x
  2. Step 2: Convert to fraction form
    20,273.88/27,983.84 = 11,777.96/x
  3. Step 3: Cross multiply
    20,273.88x = 27,983.84 × 11,777.96
  4. Step 4: Simplify right side
    20,273.88x = 329,592,548.17
  5. Step 5: Solve for x
    x = 329,592,548.17/20,273.88
  6. Step 6: Final answer
    x = 16,257.00

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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.