Home / 27,684.66-38,199.72-15,747.30

Finding the Fourth Proportional to 27,684.66, 38,199.72 and 15,747.30

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Solution

The fourth proportional to 27,684.66, 38,199.72 and 15,747.30 is: 21,728.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,684.66 : 38,199.72 = 15,747.30 : x
  2. Step 2: Convert to fraction form
    27,684.66/38,199.72 = 15,747.30/x
  3. Step 3: Cross multiply
    27,684.66x = 38,199.72 × 15,747.30
  4. Step 4: Simplify right side
    27,684.66x = 601,542,450.76
  5. Step 5: Solve for x
    x = 601,542,450.76/27,684.66
  6. Step 6: Final answer
    x = 21,728.37

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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.