Home / 20,450.48-28,221.36-11,498.00

Finding the Fourth Proportional to 20,450.48, 28,221.36 and 11,498.00

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Solution

The fourth proportional to 20,450.48, 28,221.36 and 11,498.00 is: 15,867.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,450.48 : 28,221.36 = 11,498.00 : x
  2. Step 2: Convert to fraction form
    20,450.48/28,221.36 = 11,498.00/x
  3. Step 3: Cross multiply
    20,450.48x = 28,221.36 × 11,498.00
  4. Step 4: Simplify right side
    20,450.48x = 324,489,097.98
  5. Step 5: Solve for x
    x = 324,489,097.98/20,450.48
  6. Step 6: Final answer
    x = 15,867.06

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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.