Home / 20,284.13-27,992.03-11,331.63

Finding the Fourth Proportional to 20,284.13, 27,992.03 and 11,331.63

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Solution

The fourth proportional to 20,284.13, 27,992.03 and 11,331.63 is: 15,637.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,284.13 : 27,992.03 = 11,331.63 : x
  2. Step 2: Convert to fraction form
    20,284.13/27,992.03 = 11,331.63/x
  3. Step 3: Cross multiply
    20,284.13x = 27,992.03 × 11,331.63
  4. Step 4: Simplify right side
    20,284.13x = 317,195,270.25
  5. Step 5: Solve for x
    x = 317,195,270.25/20,284.13
  6. Step 6: Final answer
    x = 15,637.61

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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.