Home / 20,282.68-27,988.48-11,329.48

Finding the Fourth Proportional to 20,282.68, 27,988.48 and 11,329.48

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Solution

The fourth proportional to 20,282.68, 27,988.48 and 11,329.48 is: 15,633.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,282.68 : 27,988.48 = 11,329.48 : x
  2. Step 2: Convert to fraction form
    20,282.68/27,988.48 = 11,329.48/x
  3. Step 3: Cross multiply
    20,282.68x = 27,988.48 × 11,329.48
  4. Step 4: Simplify right side
    20,282.68x = 317,094,924.39
  5. Step 5: Solve for x
    x = 317,094,924.39/20,282.68
  6. Step 6: Final answer
    x = 15,633.78

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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.