Home / 26,391.06-36,398.43-20,438.82

Finding the Fourth Proportional to 26,391.06, 36,398.43 and 20,438.82

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Solution

The fourth proportional to 26,391.06, 36,398.43 and 20,438.82 is: 28,189.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,391.06 : 36,398.43 = 20,438.82 : x
  2. Step 2: Convert to fraction form
    26,391.06/36,398.43 = 20,438.82/x
  3. Step 3: Cross multiply
    26,391.06x = 36,398.43 × 20,438.82
  4. Step 4: Simplify right side
    26,391.06x = 743,940,959.05
  5. Step 5: Solve for x
    x = 743,940,959.05/26,391.06
  6. Step 6: Final answer
    x = 28,189.13

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.