Home / 25,861.59-38,772.63-11,811.87

Finding the Fourth Proportional to 25,861.59, 38,772.63 and 11,811.87

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Solution

The fourth proportional to 25,861.59, 38,772.63 and 11,811.87 is: 17,708.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,861.59 : 38,772.63 = 11,811.87 : x
  2. Step 2: Convert to fraction form
    25,861.59/38,772.63 = 11,811.87/x
  3. Step 3: Cross multiply
    25,861.59x = 38,772.63 × 11,811.87
  4. Step 4: Simplify right side
    25,861.59x = 457,977,265.12
  5. Step 5: Solve for x
    x = 457,977,265.12/25,861.59
  6. Step 6: Final answer
    x = 17,708.78

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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.