Home / 16,806.42-25,140.38-13,811.15

Finding the Fourth Proportional to 16,806.42, 25,140.38 and 13,811.15

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Solution

The fourth proportional to 16,806.42, 25,140.38 and 13,811.15 is: 20,659.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,806.42 : 25,140.38 = 13,811.15 : x
  2. Step 2: Convert to fraction form
    16,806.42/25,140.38 = 13,811.15/x
  3. Step 3: Cross multiply
    16,806.42x = 25,140.38 × 13,811.15
  4. Step 4: Simplify right side
    16,806.42x = 347,217,364.48
  5. Step 5: Solve for x
    x = 347,217,364.48/16,806.42
  6. Step 6: Final answer
    x = 20,659.81

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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.