Home / 43,418.14-65,136.82-18,479.36

Finding the Fourth Proportional to 43,418.14, 65,136.82 and 18,479.36

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Solution

The fourth proportional to 43,418.14, 65,136.82 and 18,479.36 is: 27,723.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,418.14 : 65,136.82 = 18,479.36 : x
  2. Step 2: Convert to fraction form
    43,418.14/65,136.82 = 18,479.36/x
  3. Step 3: Cross multiply
    43,418.14x = 65,136.82 × 18,479.36
  4. Step 4: Simplify right side
    43,418.14x = 1,203,686,746.04
  5. Step 5: Solve for x
    x = 1,203,686,746.04/43,418.14
  6. Step 6: Final answer
    x = 27,723.13

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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.