Home / 30,919.35-42,669.47-17,489.97

Finding the Fourth Proportional to 30,919.35, 42,669.47 and 17,489.97

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Solution

The fourth proportional to 30,919.35, 42,669.47 and 17,489.97 is: 24,136.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,919.35 : 42,669.47 = 17,489.97 : x
  2. Step 2: Convert to fraction form
    30,919.35/42,669.47 = 17,489.97/x
  3. Step 3: Cross multiply
    30,919.35x = 42,669.47 × 17,489.97
  4. Step 4: Simplify right side
    30,919.35x = 746,287,662.77
  5. Step 5: Solve for x
    x = 746,287,662.77/30,919.35
  6. Step 6: Final answer
    x = 24,136.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.