Home / 30,370.28-41,911.06-16,942.40

Finding the Fourth Proportional to 30,370.28, 41,911.06 and 16,942.40

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Solution

The fourth proportional to 30,370.28, 41,911.06 and 16,942.40 is: 23,380.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,370.28 : 41,911.06 = 16,942.40 : x
  2. Step 2: Convert to fraction form
    30,370.28/41,911.06 = 16,942.40/x
  3. Step 3: Cross multiply
    30,370.28x = 41,911.06 × 16,942.40
  4. Step 4: Simplify right side
    30,370.28x = 710,073,942.94
  5. Step 5: Solve for x
    x = 710,073,942.94/30,370.28
  6. Step 6: Final answer
    x = 23,380.55

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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.