Home / 26,278.89-39,163.45-25,438.32

Finding the Fourth Proportional to 26,278.89, 39,163.45 and 25,438.32

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Solution

The fourth proportional to 26,278.89, 39,163.45 and 25,438.32 is: 37,910.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,278.89 : 39,163.45 = 25,438.32 : x
  2. Step 2: Convert to fraction form
    26,278.89/39,163.45 = 25,438.32/x
  3. Step 3: Cross multiply
    26,278.89x = 39,163.45 × 25,438.32
  4. Step 4: Simplify right side
    26,278.89x = 996,252,309.81
  5. Step 5: Solve for x
    x = 996,252,309.81/26,278.89
  6. Step 6: Final answer
    x = 37,910.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.