Home / 20,036.30-27,672.78-13,651.82

Finding the Fourth Proportional to 20,036.30, 27,672.78 and 13,651.82

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Solution

The fourth proportional to 20,036.30, 27,672.78 and 13,651.82 is: 18,854.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,036.30 : 27,672.78 = 13,651.82 : x
  2. Step 2: Convert to fraction form
    20,036.30/27,672.78 = 13,651.82/x
  3. Step 3: Cross multiply
    20,036.30x = 27,672.78 × 13,651.82
  4. Step 4: Simplify right side
    20,036.30x = 377,783,811.46
  5. Step 5: Solve for x
    x = 377,783,811.46/20,036.30
  6. Step 6: Final answer
    x = 18,854.97

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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.