Home / 27,956.03-38,579.44-15,380.78

Finding the Fourth Proportional to 27,956.03, 38,579.44 and 15,380.78

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Solution

The fourth proportional to 27,956.03, 38,579.44 and 15,380.78 is: 21,225.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,956.03 : 38,579.44 = 15,380.78 : x
  2. Step 2: Convert to fraction form
    27,956.03/38,579.44 = 15,380.78/x
  3. Step 3: Cross multiply
    27,956.03x = 38,579.44 × 15,380.78
  4. Step 4: Simplify right side
    27,956.03x = 593,381,879.16
  5. Step 5: Solve for x
    x = 593,381,879.16/27,956.03
  6. Step 6: Final answer
    x = 21,225.54

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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.