Home / 19,757.87-29,610.66-10,378.71

Finding the Fourth Proportional to 19,757.87, 29,610.66 and 10,378.71

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Solution

The fourth proportional to 19,757.87, 29,610.66 and 10,378.71 is: 15,554.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,757.87 : 29,610.66 = 10,378.71 : x
  2. Step 2: Convert to fraction form
    19,757.87/29,610.66 = 10,378.71/x
  3. Step 3: Cross multiply
    19,757.87x = 29,610.66 × 10,378.71
  4. Step 4: Simplify right side
    19,757.87x = 307,320,453.05
  5. Step 5: Solve for x
    x = 307,320,453.05/19,757.87
  6. Step 6: Final answer
    x = 15,554.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.