Home / 18,789.26-25,870.17-15,950.75

Finding the Fourth Proportional to 18,789.26, 25,870.17 and 15,950.75

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Solution

The fourth proportional to 18,789.26, 25,870.17 and 15,950.75 is: 21,961.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,789.26 : 25,870.17 = 15,950.75 : x
  2. Step 2: Convert to fraction form
    18,789.26/25,870.17 = 15,950.75/x
  3. Step 3: Cross multiply
    18,789.26x = 25,870.17 × 15,950.75
  4. Step 4: Simplify right side
    18,789.26x = 412,648,534.37
  5. Step 5: Solve for x
    x = 412,648,534.37/18,789.26
  6. Step 6: Final answer
    x = 21,961.94

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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.