Home / 30,387.11-41,936.31-16,960.98

Finding the Fourth Proportional to 30,387.11, 41,936.31 and 16,960.98

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Solution

The fourth proportional to 30,387.11, 41,936.31 and 16,960.98 is: 23,407.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,387.11 : 41,936.31 = 16,960.98 : x
  2. Step 2: Convert to fraction form
    30,387.11/41,936.31 = 16,960.98/x
  3. Step 3: Cross multiply
    30,387.11x = 41,936.31 × 16,960.98
  4. Step 4: Simplify right side
    30,387.11x = 711,280,915.18
  5. Step 5: Solve for x
    x = 711,280,915.18/30,387.11
  6. Step 6: Final answer
    x = 23,407.33

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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.