Home / 43,360.36-65,039.52-19,986.79

Finding the Fourth Proportional to 43,360.36, 65,039.52 and 19,986.79

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Solution

The fourth proportional to 43,360.36, 65,039.52 and 19,986.79 is: 29,979.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,360.36 : 65,039.52 = 19,986.79 : x
  2. Step 2: Convert to fraction form
    43,360.36/65,039.52 = 19,986.79/x
  3. Step 3: Cross multiply
    43,360.36x = 65,039.52 × 19,986.79
  4. Step 4: Simplify right side
    43,360.36x = 1,299,931,227.94
  5. Step 5: Solve for x
    x = 1,299,931,227.94/43,360.36
  6. Step 6: Final answer
    x = 29,979.71

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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.