Home / 31,270.69-43,153.57-16,930.64

Finding the Fourth Proportional to 31,270.69, 43,153.57 and 16,930.64

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Solution

The fourth proportional to 31,270.69, 43,153.57 and 16,930.64 is: 23,364.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,270.69 : 43,153.57 = 16,930.64 : x
  2. Step 2: Convert to fraction form
    31,270.69/43,153.57 = 16,930.64/x
  3. Step 3: Cross multiply
    31,270.69x = 43,153.57 × 16,930.64
  4. Step 4: Simplify right side
    31,270.69x = 730,617,687.43
  5. Step 5: Solve for x
    x = 730,617,687.43/31,270.69
  6. Step 6: Final answer
    x = 23,364.30

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Double scale
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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.