Home / 25,628.40-38,440.92-8,110.80

Finding the Fourth Proportional to 25,628.40, 38,440.92 and 8,110.80

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Solution

The fourth proportional to 25,628.40, 38,440.92 and 8,110.80 is: 12,165.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,628.40 : 38,440.92 = 8,110.80 : x
  2. Step 2: Convert to fraction form
    25,628.40/38,440.92 = 8,110.80/x
  3. Step 3: Cross multiply
    25,628.40x = 38,440.92 × 8,110.80
  4. Step 4: Simplify right side
    25,628.40x = 311,786,613.94
  5. Step 5: Solve for x
    x = 311,786,613.94/25,628.40
  6. Step 6: Final answer
    x = 12,165.67

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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.