Home / 30,984.05-42,757.91-16,836.89

Finding the Fourth Proportional to 30,984.05, 42,757.91 and 16,836.89

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Solution

The fourth proportional to 30,984.05, 42,757.91 and 16,836.89 is: 23,234.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,984.05 : 42,757.91 = 16,836.89 : x
  2. Step 2: Convert to fraction form
    30,984.05/42,757.91 = 16,836.89/x
  3. Step 3: Cross multiply
    30,984.05x = 42,757.91 × 16,836.89
  4. Step 4: Simplify right side
    30,984.05x = 719,910,313.15
  5. Step 5: Solve for x
    x = 719,910,313.15/30,984.05
  6. Step 6: Final answer
    x = 23,234.87

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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.