Home / 20,291.58-30,405.97-14,063.76

Finding the Fourth Proportional to 20,291.58, 30,405.97 and 14,063.76

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Solution

The fourth proportional to 20,291.58, 30,405.97 and 14,063.76 is: 21,073.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,291.58 : 30,405.97 = 14,063.76 : x
  2. Step 2: Convert to fraction form
    20,291.58/30,405.97 = 14,063.76/x
  3. Step 3: Cross multiply
    20,291.58x = 30,405.97 × 14,063.76
  4. Step 4: Simplify right side
    20,291.58x = 427,622,203.12
  5. Step 5: Solve for x
    x = 427,622,203.12/20,291.58
  6. Step 6: Final answer
    x = 21,073.87

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1.5x scale

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.