Home / 39,601.91-54,650.63-21,697.59

Finding the Fourth Proportional to 39,601.91, 54,650.63 and 21,697.59

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Solution

The fourth proportional to 39,601.91, 54,650.63 and 21,697.59 is: 29,942.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,601.91 : 54,650.63 = 21,697.59 : x
  2. Step 2: Convert to fraction form
    39,601.91/54,650.63 = 21,697.59/x
  3. Step 3: Cross multiply
    39,601.91x = 54,650.63 × 21,697.59
  4. Step 4: Simplify right side
    39,601.91x = 1,185,786,962.98
  5. Step 5: Solve for x
    x = 1,185,786,962.98/39,601.91
  6. Step 6: Final answer
    x = 29,942.67

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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.