Home / 30,546.05-42,153.54-18,609.38

Finding the Fourth Proportional to 30,546.05, 42,153.54 and 18,609.38

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Solution

The fourth proportional to 30,546.05, 42,153.54 and 18,609.38 is: 25,680.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,546.05 : 42,153.54 = 18,609.38 : x
  2. Step 2: Convert to fraction form
    30,546.05/42,153.54 = 18,609.38/x
  3. Step 3: Cross multiply
    30,546.05x = 42,153.54 × 18,609.38
  4. Step 4: Simplify right side
    30,546.05x = 784,451,033.44
  5. Step 5: Solve for x
    x = 784,451,033.44/30,546.05
  6. Step 6: Final answer
    x = 25,680.93

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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.