Home / 43,661.48-65,471.49-19,961.99

Finding the Fourth Proportional to 43,661.48, 65,471.49 and 19,961.99

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Solution

The fourth proportional to 43,661.48, 65,471.49 and 19,961.99 is: 29,933.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,661.48 : 65,471.49 = 19,961.99 : x
  2. Step 2: Convert to fraction form
    43,661.48/65,471.49 = 19,961.99/x
  3. Step 3: Cross multiply
    43,661.48x = 65,471.49 × 19,961.99
  4. Step 4: Simplify right side
    43,661.48x = 1,306,941,515.10
  5. Step 5: Solve for x
    x = 1,306,941,515.10/43,661.48
  6. Step 6: Final answer
    x = 29,933.51

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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.