Home / 20,744.09-28,629.41-12,676.08

Finding the Fourth Proportional to 20,744.09, 28,629.41 and 12,676.08

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Solution

The fourth proportional to 20,744.09, 28,629.41 and 12,676.08 is: 17,494.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,744.09 : 28,629.41 = 12,676.08 : x
  2. Step 2: Convert to fraction form
    20,744.09/28,629.41 = 12,676.08/x
  3. Step 3: Cross multiply
    20,744.09x = 28,629.41 × 12,676.08
  4. Step 4: Simplify right side
    20,744.09x = 362,908,691.51
  5. Step 5: Solve for x
    x = 362,908,691.51/20,744.09
  6. Step 6: Final answer
    x = 17,494.56

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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.