Home / 30,918.98-42,668.21-17,489.95

Finding the Fourth Proportional to 30,918.98, 42,668.21 and 17,489.95

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Solution

The fourth proportional to 30,918.98, 42,668.21 and 17,489.95 is: 24,136.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,918.98 : 42,668.21 = 17,489.95 : x
  2. Step 2: Convert to fraction form
    30,918.98/42,668.21 = 17,489.95/x
  3. Step 3: Cross multiply
    30,918.98x = 42,668.21 × 17,489.95
  4. Step 4: Simplify right side
    30,918.98x = 746,264,793.57
  5. Step 5: Solve for x
    x = 746,264,793.57/30,918.98
  6. Step 6: Final answer
    x = 24,136.14

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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.