Home / 30,382.80-41,928.18-16,953.91

Finding the Fourth Proportional to 30,382.80, 41,928.18 and 16,953.91

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Solution

The fourth proportional to 30,382.80, 41,928.18 and 16,953.91 is: 23,396.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,382.80 : 41,928.18 = 16,953.91 : x
  2. Step 2: Convert to fraction form
    30,382.80/41,928.18 = 16,953.91/x
  3. Step 3: Cross multiply
    30,382.80x = 41,928.18 × 16,953.91
  4. Step 4: Simplify right side
    30,382.80x = 710,846,517.15
  5. Step 5: Solve for x
    x = 710,846,517.15/30,382.80
  6. Step 6: Final answer
    x = 23,396.35

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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.