Home / 20,284.42-27,991.50-11,330.14

Finding the Fourth Proportional to 20,284.42, 27,991.50 and 11,330.14

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Solution

The fourth proportional to 20,284.42, 27,991.50 and 11,330.14 is: 15,635.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,284.42 : 27,991.50 = 11,330.14 : x
  2. Step 2: Convert to fraction form
    20,284.42/27,991.50 = 11,330.14/x
  3. Step 3: Cross multiply
    20,284.42x = 27,991.50 × 11,330.14
  4. Step 4: Simplify right side
    20,284.42x = 317,147,613.81
  5. Step 5: Solve for x
    x = 317,147,613.81/20,284.42
  6. Step 6: Final answer
    x = 15,635.03

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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.