Home / 27,956.50-38,579.97-15,380.98

Finding the Fourth Proportional to 27,956.50, 38,579.97 and 15,380.98

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Solution

The fourth proportional to 27,956.50, 38,579.97 and 15,380.98 is: 21,225.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,956.50 : 38,579.97 = 15,380.98 : x
  2. Step 2: Convert to fraction form
    27,956.50/38,579.97 = 15,380.98/x
  3. Step 3: Cross multiply
    27,956.50x = 38,579.97 × 15,380.98
  4. Step 4: Simplify right side
    27,956.50x = 593,397,746.97
  5. Step 5: Solve for x
    x = 593,397,746.97/27,956.50
  6. Step 6: Final answer
    x = 21,225.75

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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.