Home / 18,788.82-25,869.56-15,950.31

Finding the Fourth Proportional to 18,788.82, 25,869.56 and 15,950.31

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Solution

The fourth proportional to 18,788.82, 25,869.56 and 15,950.31 is: 21,961.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,788.82 : 25,869.56 = 15,950.31 : x
  2. Step 2: Convert to fraction form
    18,788.82/25,869.56 = 15,950.31/x
  3. Step 3: Cross multiply
    18,788.82x = 25,869.56 × 15,950.31
  4. Step 4: Simplify right side
    18,788.82x = 412,627,501.56
  5. Step 5: Solve for x
    x = 412,627,501.56/18,788.82
  6. Step 6: Final answer
    x = 21,961.33

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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.