Home / 18,629.86-27,920.10-13,676.32

Finding the Fourth Proportional to 18,629.86, 27,920.10 and 13,676.32

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Solution

The fourth proportional to 18,629.86, 27,920.10 and 13,676.32 is: 20,496.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,629.86 : 27,920.10 = 13,676.32 : x
  2. Step 2: Convert to fraction form
    18,629.86/27,920.10 = 13,676.32/x
  3. Step 3: Cross multiply
    18,629.86x = 27,920.10 × 13,676.32
  4. Step 4: Simplify right side
    18,629.86x = 381,844,222.03
  5. Step 5: Solve for x
    x = 381,844,222.03/18,629.86
  6. Step 6: Final answer
    x = 20,496.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.