Home / 26,826.06-40,265.59-20,139.31

Finding the Fourth Proportional to 26,826.06, 40,265.59 and 20,139.31

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Solution

The fourth proportional to 26,826.06, 40,265.59 and 20,139.31 is: 30,228.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,826.06 : 40,265.59 = 20,139.31 : x
  2. Step 2: Convert to fraction form
    26,826.06/40,265.59 = 20,139.31/x
  3. Step 3: Cross multiply
    26,826.06x = 40,265.59 × 20,139.31
  4. Step 4: Simplify right side
    26,826.06x = 810,921,048.33
  5. Step 5: Solve for x
    x = 810,921,048.33/26,826.06
  6. Step 6: Final answer
    x = 30,228.85

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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.