Home / 30,391.20-41,938.56-16,963.92

Finding the Fourth Proportional to 30,391.20, 41,938.56 and 16,963.92

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Solution

The fourth proportional to 30,391.20, 41,938.56 and 16,963.92 is: 23,409.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,391.20 : 41,938.56 = 16,963.92 : x
  2. Step 2: Convert to fraction form
    30,391.20/41,938.56 = 16,963.92/x
  3. Step 3: Cross multiply
    30,391.20x = 41,938.56 × 16,963.92
  4. Step 4: Simplify right side
    30,391.20x = 711,442,376.76
  5. Step 5: Solve for x
    x = 711,442,376.76/30,391.20
  6. Step 6: Final answer
    x = 23,409.49

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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.