Home / 20,744.38-28,628.25-11,672.58

Finding the Fourth Proportional to 20,744.38, 28,628.25 and 11,672.58

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Solution

The fourth proportional to 20,744.38, 28,628.25 and 11,672.58 is: 16,108.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,744.38 : 28,628.25 = 11,672.58 : x
  2. Step 2: Convert to fraction form
    20,744.38/28,628.25 = 11,672.58/x
  3. Step 3: Cross multiply
    20,744.38x = 28,628.25 × 11,672.58
  4. Step 4: Simplify right side
    20,744.38x = 334,165,538.39
  5. Step 5: Solve for x
    x = 334,165,538.39/20,744.38
  6. Step 6: Final answer
    x = 16,108.73

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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.