Home / 20,531.46-30,796.36-14,273.40

Finding the Fourth Proportional to 20,531.46, 30,796.36 and 14,273.40

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Solution

The fourth proportional to 20,531.46, 30,796.36 and 14,273.40 is: 21,409.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,531.46 : 30,796.36 = 14,273.40 : x
  2. Step 2: Convert to fraction form
    20,531.46/30,796.36 = 14,273.40/x
  3. Step 3: Cross multiply
    20,531.46x = 30,796.36 × 14,273.40
  4. Step 4: Simplify right side
    20,531.46x = 439,568,764.82
  5. Step 5: Solve for x
    x = 439,568,764.82/20,531.46
  6. Step 6: Final answer
    x = 21,409.52

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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.