Home / 27,936-38,551.68-15,361.56

Finding the Fourth Proportional to 27,936, 38,551.68 and 15,361.56

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Solution

The fourth proportional to 27,936, 38,551.68 and 15,361.56 is: 21,198.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,936 : 38,551.68 = 15,361.56 : x
  2. Step 2: Convert to fraction form
    27,936/38,551.68 = 15,361.56/x
  3. Step 3: Cross multiply
    27,936x = 38,551.68 × 15,361.56
  4. Step 4: Simplify right side
    27,936x = 592,213,945.42
  5. Step 5: Solve for x
    x = 592,213,945.42/27,936
  6. Step 6: Final answer
    x = 21,198.95

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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.