Home / 30,366.43-41,905.91-16,938.55

Finding the Fourth Proportional to 30,366.43, 41,905.91 and 16,938.55

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Solution

The fourth proportional to 30,366.43, 41,905.91 and 16,938.55 is: 23,375.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,366.43 : 41,905.91 = 16,938.55 : x
  2. Step 2: Convert to fraction form
    30,366.43/41,905.91 = 16,938.55/x
  3. Step 3: Cross multiply
    30,366.43x = 41,905.91 × 16,938.55
  4. Step 4: Simplify right side
    30,366.43x = 709,825,351.83
  5. Step 5: Solve for x
    x = 709,825,351.83/30,366.43
  6. Step 6: Final answer
    x = 23,375.33

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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.