Home / 25,861.58-38,785.37-7,137.11

Finding the Fourth Proportional to 25,861.58, 38,785.37 and 7,137.11

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Solution

The fourth proportional to 25,861.58, 38,785.37 and 7,137.11 is: 10,703.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,861.58 : 38,785.37 = 7,137.11 : x
  2. Step 2: Convert to fraction form
    25,861.58/38,785.37 = 7,137.11/x
  3. Step 3: Cross multiply
    25,861.58x = 38,785.37 × 7,137.11
  4. Step 4: Simplify right side
    25,861.58x = 276,815,513.36
  5. Step 5: Solve for x
    x = 276,815,513.36/25,861.58
  6. Step 6: Final answer
    x = 10,703.74

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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.