Home / 30,940.92-42,699.38-16,794.68

Finding the Fourth Proportional to 30,940.92, 42,699.38 and 16,794.68

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Solution

The fourth proportional to 30,940.92, 42,699.38 and 16,794.68 is: 23,177.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,940.92 : 42,699.38 = 16,794.68 : x
  2. Step 2: Convert to fraction form
    30,940.92/42,699.38 = 16,794.68/x
  3. Step 3: Cross multiply
    30,940.92x = 42,699.38 × 16,794.68
  4. Step 4: Simplify right side
    30,940.92x = 717,122,363.34
  5. Step 5: Solve for x
    x = 717,122,363.34/30,940.92
  6. Step 6: Final answer
    x = 23,177.15

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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.