Home / 20,744.63-28,628.60-11,672.82

Finding the Fourth Proportional to 20,744.63, 28,628.60 and 11,672.82

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Solution

The fourth proportional to 20,744.63, 28,628.60 and 11,672.82 is: 16,109.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,744.63 : 28,628.60 = 11,672.82 : x
  2. Step 2: Convert to fraction form
    20,744.63/28,628.60 = 11,672.82/x
  3. Step 3: Cross multiply
    20,744.63x = 28,628.60 × 11,672.82
  4. Step 4: Simplify right side
    20,744.63x = 334,176,436.29
  5. Step 5: Solve for x
    x = 334,176,436.29/20,744.63
  6. Step 6: Final answer
    x = 16,109.06

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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.