Home / 43,879.68-65,822.76-12,717.36

Finding the Fourth Proportional to 43,879.68, 65,822.76 and 12,717.36

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Solution

The fourth proportional to 43,879.68, 65,822.76 and 12,717.36 is: 19,076.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,879.68 : 65,822.76 = 12,717.36 : x
  2. Step 2: Convert to fraction form
    43,879.68/65,822.76 = 12,717.36/x
  3. Step 3: Cross multiply
    43,879.68x = 65,822.76 × 12,717.36
  4. Step 4: Simplify right side
    43,879.68x = 837,091,735.11
  5. Step 5: Solve for x
    x = 837,091,735.11/43,879.68
  6. Step 6: Final answer
    x = 19,076.98

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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.