Home / 20,450.07-28,221.08-11,958.03

Finding the Fourth Proportional to 20,450.07, 28,221.08 and 11,958.03

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Solution

The fourth proportional to 20,450.07, 28,221.08 and 11,958.03 is: 16,502.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,450.07 : 28,221.08 = 11,958.03 : x
  2. Step 2: Convert to fraction form
    20,450.07/28,221.08 = 11,958.03/x
  3. Step 3: Cross multiply
    20,450.07x = 28,221.08 × 11,958.03
  4. Step 4: Simplify right side
    20,450.07x = 337,468,461.48
  5. Step 5: Solve for x
    x = 337,468,461.48/20,450.07
  6. Step 6: Final answer
    x = 16,502.07

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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.