Home / 26,401.12-36,438.24-15,791.92

Finding the Fourth Proportional to 26,401.12, 36,438.24 and 15,791.92

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Solution

The fourth proportional to 26,401.12, 36,438.24 and 15,791.92 is: 21,795.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,401.12 : 36,438.24 = 15,791.92 : x
  2. Step 2: Convert to fraction form
    26,401.12/36,438.24 = 15,791.92/x
  3. Step 3: Cross multiply
    26,401.12x = 36,438.24 × 15,791.92
  4. Step 4: Simplify right side
    26,401.12x = 575,429,771.02
  5. Step 5: Solve for x
    x = 575,429,771.02/26,401.12
  6. Step 6: Final answer
    x = 21,795.66

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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.