Home / 30,942.92-42,702.14-16,796.68

Finding the Fourth Proportional to 30,942.92, 42,702.14 and 16,796.68

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Solution

The fourth proportional to 30,942.92, 42,702.14 and 16,796.68 is: 23,179.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,942.92 : 42,702.14 = 16,796.68 : x
  2. Step 2: Convert to fraction form
    30,942.92/42,702.14 = 16,796.68/x
  3. Step 3: Cross multiply
    30,942.92x = 42,702.14 × 16,796.68
  4. Step 4: Simplify right side
    30,942.92x = 717,254,180.90
  5. Step 5: Solve for x
    x = 717,254,180.90/30,942.92
  6. Step 6: Final answer
    x = 23,179.91

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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.