Home / 27,638.88-38,141.76-15,063.66

Finding the Fourth Proportional to 27,638.88, 38,141.76 and 15,063.66

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Solution

The fourth proportional to 27,638.88, 38,141.76 and 15,063.66 is: 20,787.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,638.88 : 38,141.76 = 15,063.66 : x
  2. Step 2: Convert to fraction form
    27,638.88/38,141.76 = 15,063.66/x
  3. Step 3: Cross multiply
    27,638.88x = 38,141.76 × 15,063.66
  4. Step 4: Simplify right side
    27,638.88x = 574,554,504.44
  5. Step 5: Solve for x
    x = 574,554,504.44/27,638.88
  6. Step 6: Final answer
    x = 20,787.91

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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.