Home / 34,876.86-48,140.37-20,739.12

Finding the Fourth Proportional to 34,876.86, 48,140.37 and 20,739.12

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Solution

The fourth proportional to 34,876.86, 48,140.37 and 20,739.12 is: 28,626.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,876.86 : 48,140.37 = 20,739.12 : x
  2. Step 2: Convert to fraction form
    34,876.86/48,140.37 = 20,739.12/x
  3. Step 3: Cross multiply
    34,876.86x = 48,140.37 × 20,739.12
  4. Step 4: Simplify right side
    34,876.86x = 998,388,910.27
  5. Step 5: Solve for x
    x = 998,388,910.27/34,876.86
  6. Step 6: Final answer
    x = 28,626.11

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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.