Home / 20,355.62-30,438.20-14,494.46

Finding the Fourth Proportional to 20,355.62, 30,438.20 and 14,494.46

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Solution

The fourth proportional to 20,355.62, 30,438.20 and 14,494.46 is: 21,673.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,355.62 : 30,438.20 = 14,494.46 : x
  2. Step 2: Convert to fraction form
    20,355.62/30,438.20 = 14,494.46/x
  3. Step 3: Cross multiply
    20,355.62x = 30,438.20 × 14,494.46
  4. Step 4: Simplify right side
    20,355.62x = 441,185,272.37
  5. Step 5: Solve for x
    x = 441,185,272.37/20,355.62
  6. Step 6: Final answer
    x = 21,673.88

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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.