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Finding the Fourth Proportional to 41,155.84, 61,739.64 and 12,695.20

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Solution

The fourth proportional to 41,155.84, 61,739.64 and 12,695.20 is: 19,044.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,155.84 : 61,739.64 = 12,695.20 : x
  2. Step 2: Convert to fraction form
    41,155.84/61,739.64 = 12,695.20/x
  3. Step 3: Cross multiply
    41,155.84x = 61,739.64 × 12,695.20
  4. Step 4: Simplify right side
    41,155.84x = 783,797,077.73
  5. Step 5: Solve for x
    x = 783,797,077.73/41,155.84
  6. Step 6: Final answer
    x = 19,044.61

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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.