Home / 27,638.88-38,141.64-15,063.64

Finding the Fourth Proportional to 27,638.88, 38,141.64 and 15,063.64

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Solution

The fourth proportional to 27,638.88, 38,141.64 and 15,063.64 is: 20,787.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,638.88 : 38,141.64 = 15,063.64 : x
  2. Step 2: Convert to fraction form
    27,638.88/38,141.64 = 15,063.64/x
  3. Step 3: Cross multiply
    27,638.88x = 38,141.64 × 15,063.64
  4. Step 4: Simplify right side
    27,638.88x = 574,551,933.97
  5. Step 5: Solve for x
    x = 574,551,933.97/27,638.88
  6. Step 6: Final answer
    x = 20,787.82

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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.