Home / 20,232.86-27,911.42-13,520.14

Finding the Fourth Proportional to 20,232.86, 27,911.42 and 13,520.14

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Solution

The fourth proportional to 20,232.86, 27,911.42 and 13,520.14 is: 18,651.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,232.86 : 27,911.42 = 13,520.14 : x
  2. Step 2: Convert to fraction form
    20,232.86/27,911.42 = 13,520.14/x
  3. Step 3: Cross multiply
    20,232.86x = 27,911.42 × 13,520.14
  4. Step 4: Simplify right side
    20,232.86x = 377,366,270.02
  5. Step 5: Solve for x
    x = 377,366,270.02/20,232.86
  6. Step 6: Final answer
    x = 18,651.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.