Home / 30,405.10-41,958.74-16,976.92

Finding the Fourth Proportional to 30,405.10, 41,958.74 and 16,976.92

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Solution

The fourth proportional to 30,405.10, 41,958.74 and 16,976.92 is: 23,427.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,405.10 : 41,958.74 = 16,976.92 : x
  2. Step 2: Convert to fraction form
    30,405.10/41,958.74 = 16,976.92/x
  3. Step 3: Cross multiply
    30,405.10x = 41,958.74 × 16,976.92
  4. Step 4: Simplify right side
    30,405.10x = 712,330,172.28
  5. Step 5: Solve for x
    x = 712,330,172.28/30,405.10
  6. Step 6: Final answer
    x = 23,427.98

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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.