Home / 30,120.96-41,564.58-16,691.91

Finding the Fourth Proportional to 30,120.96, 41,564.58 and 16,691.91

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Solution

The fourth proportional to 30,120.96, 41,564.58 and 16,691.91 is: 23,033.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,120.96 : 41,564.58 = 16,691.91 : x
  2. Step 2: Convert to fraction form
    30,120.96/41,564.58 = 16,691.91/x
  3. Step 3: Cross multiply
    30,120.96x = 41,564.58 × 16,691.91
  4. Step 4: Simplify right side
    30,120.96x = 693,792,228.55
  5. Step 5: Solve for x
    x = 693,792,228.55/30,120.96
  6. Step 6: Final answer
    x = 23,033.54

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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.