Home / 27,872.96-38,463.40-15,297.92

Finding the Fourth Proportional to 27,872.96, 38,463.40 and 15,297.92

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Solution

The fourth proportional to 27,872.96, 38,463.40 and 15,297.92 is: 21,110.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,872.96 : 38,463.40 = 15,297.92 : x
  2. Step 2: Convert to fraction form
    27,872.96/38,463.40 = 15,297.92/x
  3. Step 3: Cross multiply
    27,872.96x = 38,463.40 × 15,297.92
  4. Step 4: Simplify right side
    27,872.96x = 588,410,016.13
  5. Step 5: Solve for x
    x = 588,410,016.13/27,872.96
  6. Step 6: Final answer
    x = 21,110.42

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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.