Home / 27,709.56-38,239.38-15,773.79

Finding the Fourth Proportional to 27,709.56, 38,239.38 and 15,773.79

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Solution

The fourth proportional to 27,709.56, 38,239.38 and 15,773.79 is: 21,767.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,709.56 : 38,239.38 = 15,773.79 : x
  2. Step 2: Convert to fraction form
    27,709.56/38,239.38 = 15,773.79/x
  3. Step 3: Cross multiply
    27,709.56x = 38,239.38 × 15,773.79
  4. Step 4: Simplify right side
    27,709.56x = 603,179,949.85
  5. Step 5: Solve for x
    x = 603,179,949.85/27,709.56
  6. Step 6: Final answer
    x = 21,767.94

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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.