Home / 20,260.45-27,956.66-11,306.81

Finding the Fourth Proportional to 20,260.45, 27,956.66 and 11,306.81

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Solution

The fourth proportional to 20,260.45, 27,956.66 and 11,306.81 is: 15,601.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,260.45 : 27,956.66 = 11,306.81 : x
  2. Step 2: Convert to fraction form
    20,260.45/27,956.66 = 11,306.81/x
  3. Step 3: Cross multiply
    20,260.45x = 27,956.66 × 11,306.81
  4. Step 4: Simplify right side
    20,260.45x = 316,100,642.85
  5. Step 5: Solve for x
    x = 316,100,642.85/20,260.45
  6. Step 6: Final answer
    x = 15,601.86

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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.