Home / 30,940.13-42,698.16-16,792.94

Finding the Fourth Proportional to 30,940.13, 42,698.16 and 16,792.94

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Solution

The fourth proportional to 30,940.13, 42,698.16 and 16,792.94 is: 23,174.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,940.13 : 42,698.16 = 16,792.94 : x
  2. Step 2: Convert to fraction form
    30,940.13/42,698.16 = 16,792.94/x
  3. Step 3: Cross multiply
    30,940.13x = 42,698.16 × 16,792.94
  4. Step 4: Simplify right side
    30,940.13x = 717,027,425.50
  5. Step 5: Solve for x
    x = 717,027,425.50/30,940.13
  6. Step 6: Final answer
    x = 23,174.68

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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.