Home / 30,331.72-41,857.68-16,902.88

Finding the Fourth Proportional to 30,331.72, 41,857.68 and 16,902.88

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Solution

The fourth proportional to 30,331.72, 41,857.68 and 16,902.88 is: 23,325.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,331.72 : 41,857.68 = 16,902.88 : x
  2. Step 2: Convert to fraction form
    30,331.72/41,857.68 = 16,902.88/x
  3. Step 3: Cross multiply
    30,331.72x = 41,857.68 × 16,902.88
  4. Step 4: Simplify right side
    30,331.72x = 707,515,342.12
  5. Step 5: Solve for x
    x = 707,515,342.12/30,331.72
  6. Step 6: Final answer
    x = 23,325.92

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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.