Home / 20,623.01-28,459.44-11,672.27

Finding the Fourth Proportional to 20,623.01, 28,459.44 and 11,672.27

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Solution

The fourth proportional to 20,623.01, 28,459.44 and 11,672.27 is: 16,107.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,623.01 : 28,459.44 = 11,672.27 : x
  2. Step 2: Convert to fraction form
    20,623.01/28,459.44 = 11,672.27/x
  3. Step 3: Cross multiply
    20,623.01x = 28,459.44 × 11,672.27
  4. Step 4: Simplify right side
    20,623.01x = 332,186,267.73
  5. Step 5: Solve for x
    x = 332,186,267.73/20,623.01
  6. Step 6: Final answer
    x = 16,107.55

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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.