Home / 39,175.56-58,771.98-12,879.18

Finding the Fourth Proportional to 39,175.56, 58,771.98 and 12,879.18

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Solution

The fourth proportional to 39,175.56, 58,771.98 and 12,879.18 is: 19,321.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,175.56 : 58,771.98 = 12,879.18 : x
  2. Step 2: Convert to fraction form
    39,175.56/58,771.98 = 12,879.18/x
  3. Step 3: Cross multiply
    39,175.56x = 58,771.98 × 12,879.18
  4. Step 4: Simplify right side
    39,175.56x = 756,934,909.38
  5. Step 5: Solve for x
    x = 756,934,909.38/39,175.56
  6. Step 6: Final answer
    x = 19,321.61

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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.