Home / 20,673.92-28,529.39-11,722.24

Finding the Fourth Proportional to 20,673.92, 28,529.39 and 11,722.24

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Solution

The fourth proportional to 20,673.92, 28,529.39 and 11,722.24 is: 16,176.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,673.92 : 28,529.39 = 11,722.24 : x
  2. Step 2: Convert to fraction form
    20,673.92/28,529.39 = 11,722.24/x
  3. Step 3: Cross multiply
    20,673.92x = 28,529.39 × 11,722.24
  4. Step 4: Simplify right side
    20,673.92x = 334,428,356.63
  5. Step 5: Solve for x
    x = 334,428,356.63/20,673.92
  6. Step 6: Final answer
    x = 16,176.34

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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.