Home / 27,956-38,579.64-15,380.48

Finding the Fourth Proportional to 27,956, 38,579.64 and 15,380.48

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Solution

The fourth proportional to 27,956, 38,579.64 and 15,380.48 is: 21,225.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,956 : 38,579.64 = 15,380.48 : x
  2. Step 2: Convert to fraction form
    27,956/38,579.64 = 15,380.48/x
  3. Step 3: Cross multiply
    27,956x = 38,579.64 × 15,380.48
  4. Step 4: Simplify right side
    27,956x = 593,373,381.43
  5. Step 5: Solve for x
    x = 593,373,381.43/27,956
  6. Step 6: Final answer
    x = 21,225.26

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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.