Home / 25,511.25-38,269.67-8,656.43

Finding the Fourth Proportional to 25,511.25, 38,269.67 and 8,656.43

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Solution

The fourth proportional to 25,511.25, 38,269.67 and 8,656.43 is: 12,985.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,511.25 : 38,269.67 = 8,656.43 : x
  2. Step 2: Convert to fraction form
    25,511.25/38,269.67 = 8,656.43/x
  3. Step 3: Cross multiply
    25,511.25x = 38,269.67 × 8,656.43
  4. Step 4: Simplify right side
    25,511.25x = 331,278,719.48
  5. Step 5: Solve for x
    x = 331,278,719.48/25,511.25
  6. Step 6: Final answer
    x = 12,985.59

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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.