Home / 26,881.21-40,322.72-20,650.69

Finding the Fourth Proportional to 26,881.21, 40,322.72 and 20,650.69

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Solution

The fourth proportional to 26,881.21, 40,322.72 and 20,650.69 is: 30,976.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,881.21 : 40,322.72 = 20,650.69 : x
  2. Step 2: Convert to fraction form
    26,881.21/40,322.72 = 20,650.69/x
  3. Step 3: Cross multiply
    26,881.21x = 40,322.72 × 20,650.69
  4. Step 4: Simplify right side
    26,881.21x = 832,691,990.68
  5. Step 5: Solve for x
    x = 832,691,990.68/26,881.21
  6. Step 6: Final answer
    x = 30,976.73

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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.