Home / 43,391.92-65,029-19,669.84

Finding the Fourth Proportional to 43,391.92, 65,029 and 19,669.84

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Solution

The fourth proportional to 43,391.92, 65,029 and 19,669.84 is: 29,478.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,391.92 : 65,029 = 19,669.84 : x
  2. Step 2: Convert to fraction form
    43,391.92/65,029 = 19,669.84/x
  3. Step 3: Cross multiply
    43,391.92x = 65,029 × 19,669.84
  4. Step 4: Simplify right side
    43,391.92x = 1,279,110,025.36
  5. Step 5: Solve for x
    x = 1,279,110,025.36/43,391.92
  6. Step 6: Final answer
    x = 29,478.07

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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.