Home / 27,471.78-37,912.32-15,535.62

Finding the Fourth Proportional to 27,471.78, 37,912.32 and 15,535.62

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Solution

The fourth proportional to 27,471.78, 37,912.32 and 15,535.62 is: 21,439.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,471.78 : 37,912.32 = 15,535.62 : x
  2. Step 2: Convert to fraction form
    27,471.78/37,912.32 = 15,535.62/x
  3. Step 3: Cross multiply
    27,471.78x = 37,912.32 × 15,535.62
  4. Step 4: Simplify right side
    27,471.78x = 588,991,396.84
  5. Step 5: Solve for x
    x = 588,991,396.84/27,471.78
  6. Step 6: Final answer
    x = 21,439.87

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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.