Home / 30,630.19-45,951.82-10,640.30

Finding the Fourth Proportional to 30,630.19, 45,951.82 and 10,640.30

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Solution

The fourth proportional to 30,630.19, 45,951.82 and 10,640.30 is: 15,962.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,630.19 : 45,951.82 = 10,640.30 : x
  2. Step 2: Convert to fraction form
    30,630.19/45,951.82 = 10,640.30/x
  3. Step 3: Cross multiply
    30,630.19x = 45,951.82 × 10,640.30
  4. Step 4: Simplify right side
    30,630.19x = 488,940,867.39
  5. Step 5: Solve for x
    x = 488,940,867.39/30,630.19
  6. Step 6: Final answer
    x = 15,962.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.