Home / 30,385.94-41,934.69-16,959.80

Finding the Fourth Proportional to 30,385.94, 41,934.69 and 16,959.80

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Solution

The fourth proportional to 30,385.94, 41,934.69 and 16,959.80 is: 23,405.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,385.94 : 41,934.69 = 16,959.80 : x
  2. Step 2: Convert to fraction form
    30,385.94/41,934.69 = 16,959.80/x
  3. Step 3: Cross multiply
    30,385.94x = 41,934.69 × 16,959.80
  4. Step 4: Simplify right side
    30,385.94x = 711,204,060.30
  5. Step 5: Solve for x
    x = 711,204,060.30/30,385.94
  6. Step 6: Final answer
    x = 23,405.70

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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.