Home / 20,556.54-30,876.87-13,546.59

Finding the Fourth Proportional to 20,556.54, 30,876.87 and 13,546.59

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Solution

The fourth proportional to 20,556.54, 30,876.87 and 13,546.59 is: 20,347.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,556.54 : 30,876.87 = 13,546.59 : x
  2. Step 2: Convert to fraction form
    20,556.54/30,876.87 = 13,546.59/x
  3. Step 3: Cross multiply
    20,556.54x = 30,876.87 × 13,546.59
  4. Step 4: Simplify right side
    20,556.54x = 418,276,298.37
  5. Step 5: Solve for x
    x = 418,276,298.37/20,556.54
  6. Step 6: Final answer
    x = 20,347.60

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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.