Home / 25,811.11-38,709.64-7,086.71

Finding the Fourth Proportional to 25,811.11, 38,709.64 and 7,086.71

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Solution

The fourth proportional to 25,811.11, 38,709.64 and 7,086.71 is: 10,628.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,811.11 : 38,709.64 = 7,086.71 : x
  2. Step 2: Convert to fraction form
    25,811.11/38,709.64 = 7,086.71/x
  3. Step 3: Cross multiply
    25,811.11x = 38,709.64 × 7,086.71
  4. Step 4: Simplify right side
    25,811.11x = 274,324,098.52
  5. Step 5: Solve for x
    x = 274,324,098.52/25,811.11
  6. Step 6: Final answer
    x = 10,628.14

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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.