Home / 20,673.39-28,529.92-11,721.27

Finding the Fourth Proportional to 20,673.39, 28,529.92 and 11,721.27

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Solution

The fourth proportional to 20,673.39, 28,529.92 and 11,721.27 is: 16,175.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,673.39 : 28,529.92 = 11,721.27 : x
  2. Step 2: Convert to fraction form
    20,673.39/28,529.92 = 11,721.27/x
  3. Step 3: Cross multiply
    20,673.39x = 28,529.92 × 11,721.27
  4. Step 4: Simplify right side
    20,673.39x = 334,407,017.04
  5. Step 5: Solve for x
    x = 334,407,017.04/20,673.39
  6. Step 6: Final answer
    x = 16,175.72

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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.