Home / 30,209.70-41,691.21-16,781.04

Finding the Fourth Proportional to 30,209.70, 41,691.21 and 16,781.04

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Solution

The fourth proportional to 30,209.70, 41,691.21 and 16,781.04 is: 23,158.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,209.70 : 41,691.21 = 16,781.04 : x
  2. Step 2: Convert to fraction form
    30,209.70/41,691.21 = 16,781.04/x
  3. Step 3: Cross multiply
    30,209.70x = 41,691.21 × 16,781.04
  4. Step 4: Simplify right side
    30,209.70x = 699,621,862.66
  5. Step 5: Solve for x
    x = 699,621,862.66/30,209.70
  6. Step 6: Final answer
    x = 23,158.85

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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.