Home / 20,165.14-27,823.58-13,707.02

Finding the Fourth Proportional to 20,165.14, 27,823.58 and 13,707.02

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Solution

The fourth proportional to 20,165.14, 27,823.58 and 13,707.02 is: 18,912.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,165.14 : 27,823.58 = 13,707.02 : x
  2. Step 2: Convert to fraction form
    20,165.14/27,823.58 = 13,707.02/x
  3. Step 3: Cross multiply
    20,165.14x = 27,823.58 × 13,707.02
  4. Step 4: Simplify right side
    20,165.14x = 381,378,367.53
  5. Step 5: Solve for x
    x = 381,378,367.53/20,165.14
  6. Step 6: Final answer
    x = 18,912.76

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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.