Home / 20,165.20-27,835.57-17,321.19

Finding the Fourth Proportional to 20,165.20, 27,835.57 and 17,321.19

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Solution

The fourth proportional to 20,165.20, 27,835.57 and 17,321.19 is: 23,909.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,165.20 : 27,835.57 = 17,321.19 : x
  2. Step 2: Convert to fraction form
    20,165.20/27,835.57 = 17,321.19/x
  3. Step 3: Cross multiply
    20,165.20x = 27,835.57 × 17,321.19
  4. Step 4: Simplify right side
    20,165.20x = 482,145,319.29
  5. Step 5: Solve for x
    x = 482,145,319.29/20,165.20
  6. Step 6: Final answer
    x = 23,909.77

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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.