Home / 27,639.42-38,141.38-15,063.90

Finding the Fourth Proportional to 27,639.42, 38,141.38 and 15,063.90

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Solution

The fourth proportional to 27,639.42, 38,141.38 and 15,063.90 is: 20,787.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,639.42 : 38,141.38 = 15,063.90 : x
  2. Step 2: Convert to fraction form
    27,639.42/38,141.38 = 15,063.90/x
  3. Step 3: Cross multiply
    27,639.42x = 38,141.38 × 15,063.90
  4. Step 4: Simplify right side
    27,639.42x = 574,557,934.18
  5. Step 5: Solve for x
    x = 574,557,934.18/27,639.42
  6. Step 6: Final answer
    x = 20,787.63

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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.