Home / 30,411.57-41,968.03-16,982.79

Finding the Fourth Proportional to 30,411.57, 41,968.03 and 16,982.79

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Solution

The fourth proportional to 30,411.57, 41,968.03 and 16,982.79 is: 23,436.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,411.57 : 41,968.03 = 16,982.79 : x
  2. Step 2: Convert to fraction form
    30,411.57/41,968.03 = 16,982.79/x
  3. Step 3: Cross multiply
    30,411.57x = 41,968.03 × 16,982.79
  4. Step 4: Simplify right side
    30,411.57x = 712,734,240.20
  5. Step 5: Solve for x
    x = 712,734,240.20/30,411.57
  6. Step 6: Final answer
    x = 23,436.29

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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.