Home / 30,942.96-42,702.18-16,796.70

Finding the Fourth Proportional to 30,942.96, 42,702.18 and 16,796.70

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Solution

The fourth proportional to 30,942.96, 42,702.18 and 16,796.70 is: 23,179.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,942.96 : 42,702.18 = 16,796.70 : x
  2. Step 2: Convert to fraction form
    30,942.96/42,702.18 = 16,796.70/x
  3. Step 3: Cross multiply
    30,942.96x = 42,702.18 × 16,796.70
  4. Step 4: Simplify right side
    30,942.96x = 717,255,706.81
  5. Step 5: Solve for x
    x = 717,255,706.81/30,942.96
  6. Step 6: Final answer
    x = 23,179.93

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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.