Home / 25,556.54-38,333.88-12,405.38

Finding the Fourth Proportional to 25,556.54, 38,333.88 and 12,405.38

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Solution

The fourth proportional to 25,556.54, 38,333.88 and 12,405.38 is: 18,607.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,556.54 : 38,333.88 = 12,405.38 : x
  2. Step 2: Convert to fraction form
    25,556.54/38,333.88 = 12,405.38/x
  3. Step 3: Cross multiply
    25,556.54x = 38,333.88 × 12,405.38
  4. Step 4: Simplify right side
    25,556.54x = 475,546,156.61
  5. Step 5: Solve for x
    x = 475,546,156.61/25,556.54
  6. Step 6: Final answer
    x = 18,607.61

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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.