Home / 20,282.14-27,989.37-11,329.63

Finding the Fourth Proportional to 20,282.14, 27,989.37 and 11,329.63

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Solution

The fourth proportional to 20,282.14, 27,989.37 and 11,329.63 is: 15,634.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,282.14 : 27,989.37 = 11,329.63 : x
  2. Step 2: Convert to fraction form
    20,282.14/27,989.37 = 11,329.63/x
  3. Step 3: Cross multiply
    20,282.14x = 27,989.37 × 11,329.63
  4. Step 4: Simplify right side
    20,282.14x = 317,109,206.03
  5. Step 5: Solve for x
    x = 317,109,206.03/20,282.14
  6. Step 6: Final answer
    x = 15,634.90

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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.