Home / 20,284.68-27,991.26-11,331.48

Finding the Fourth Proportional to 20,284.68, 27,991.26 and 11,331.48

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Solution

The fourth proportional to 20,284.68, 27,991.26 and 11,331.48 is: 15,636.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,284.68 : 27,991.26 = 11,331.48 : x
  2. Step 2: Convert to fraction form
    20,284.68/27,991.26 = 11,331.48/x
  3. Step 3: Cross multiply
    20,284.68x = 27,991.26 × 11,331.48
  4. Step 4: Simplify right side
    20,284.68x = 317,182,402.86
  5. Step 5: Solve for x
    x = 317,182,402.86/20,284.68
  6. Step 6: Final answer
    x = 15,636.55

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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.