Home / 26,458.88-36,480.85-20,775.92

Finding the Fourth Proportional to 26,458.88, 36,480.85 and 20,775.92

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Solution

The fourth proportional to 26,458.88, 36,480.85 and 20,775.92 is: 28,645.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,458.88 : 36,480.85 = 20,775.92 : x
  2. Step 2: Convert to fraction form
    26,458.88/36,480.85 = 20,775.92/x
  3. Step 3: Cross multiply
    26,458.88x = 36,480.85 × 20,775.92
  4. Step 4: Simplify right side
    26,458.88x = 757,922,986.79
  5. Step 5: Solve for x
    x = 757,922,986.79/26,458.88
  6. Step 6: Final answer
    x = 28,645.32

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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.