Home / 30,613.97-42,247.29-17,189.57

Finding the Fourth Proportional to 30,613.97, 42,247.29 and 17,189.57

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Solution

The fourth proportional to 30,613.97, 42,247.29 and 17,189.57 is: 23,721.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,613.97 : 42,247.29 = 17,189.57 : x
  2. Step 2: Convert to fraction form
    30,613.97/42,247.29 = 17,189.57/x
  3. Step 3: Cross multiply
    30,613.97x = 42,247.29 × 17,189.57
  4. Step 4: Simplify right side
    30,613.97x = 726,212,537.53
  5. Step 5: Solve for x
    x = 726,212,537.53/30,613.97
  6. Step 6: Final answer
    x = 23,721.61

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1.5x scale

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.