Home / 30,396.88-41,949.30-16,971.43

Finding the Fourth Proportional to 30,396.88, 41,949.30 and 16,971.43

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Solution

The fourth proportional to 30,396.88, 41,949.30 and 16,971.43 is: 23,421.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,396.88 : 41,949.30 = 16,971.43 : x
  2. Step 2: Convert to fraction form
    30,396.88/41,949.30 = 16,971.43/x
  3. Step 3: Cross multiply
    30,396.88x = 41,949.30 × 16,971.43
  4. Step 4: Simplify right side
    30,396.88x = 711,939,608.50
  5. Step 5: Solve for x
    x = 711,939,608.50/30,396.88
  6. Step 6: Final answer
    x = 23,421.47

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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.