Home / 20,327.26-30,490.89-13,400.14

Finding the Fourth Proportional to 20,327.26, 30,490.89 and 13,400.14

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Solution

The fourth proportional to 20,327.26, 30,490.89 and 13,400.14 is: 20,100.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,327.26 : 30,490.89 = 13,400.14 : x
  2. Step 2: Convert to fraction form
    20,327.26/30,490.89 = 13,400.14/x
  3. Step 3: Cross multiply
    20,327.26x = 30,490.89 × 13,400.14
  4. Step 4: Simplify right side
    20,327.26x = 408,582,194.72
  5. Step 5: Solve for x
    x = 408,582,194.72/20,327.26
  6. Step 6: Final answer
    x = 20,100.21

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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.