Home / 20,587.64-30,868.14-13,546.34

Finding the Fourth Proportional to 20,587.64, 30,868.14 and 13,546.34

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Solution

The fourth proportional to 20,587.64, 30,868.14 and 13,546.34 is: 20,310.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,587.64 : 30,868.14 = 13,546.34 : x
  2. Step 2: Convert to fraction form
    20,587.64/30,868.14 = 13,546.34/x
  3. Step 3: Cross multiply
    20,587.64x = 30,868.14 × 13,546.34
  4. Step 4: Simplify right side
    20,587.64x = 418,150,255.62
  5. Step 5: Solve for x
    x = 418,150,255.62/20,587.64
  6. Step 6: Final answer
    x = 20,310.74

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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.