Home / 26,029.45-39,003.29-20,120.81

Finding the Fourth Proportional to 26,029.45, 39,003.29 and 20,120.81

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Solution

The fourth proportional to 26,029.45, 39,003.29 and 20,120.81 is: 30,149.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,029.45 : 39,003.29 = 20,120.81 : x
  2. Step 2: Convert to fraction form
    26,029.45/39,003.29 = 20,120.81/x
  3. Step 3: Cross multiply
    26,029.45x = 39,003.29 × 20,120.81
  4. Step 4: Simplify right side
    26,029.45x = 784,777,686.86
  5. Step 5: Solve for x
    x = 784,777,686.86/26,029.45
  6. Step 6: Final answer
    x = 30,149.61

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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.