Home / 20,023.88-27,633.60-11,071.68

Finding the Fourth Proportional to 20,023.88, 27,633.60 and 11,071.68

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Solution

The fourth proportional to 20,023.88, 27,633.60 and 11,071.68 is: 15,279.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,023.88 : 27,633.60 = 11,071.68 : x
  2. Step 2: Convert to fraction form
    20,023.88/27,633.60 = 11,071.68/x
  3. Step 3: Cross multiply
    20,023.88x = 27,633.60 × 11,071.68
  4. Step 4: Simplify right side
    20,023.88x = 305,950,376.45
  5. Step 5: Solve for x
    x = 305,950,376.45/20,023.88
  6. Step 6: Final answer
    x = 15,279.28

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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.