Home / 30,387.14-41,936.36-16,961.02

Finding the Fourth Proportional to 30,387.14, 41,936.36 and 16,961.02

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Solution

The fourth proportional to 30,387.14, 41,936.36 and 16,961.02 is: 23,407.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,387.14 : 41,936.36 = 16,961.02 : x
  2. Step 2: Convert to fraction form
    30,387.14/41,936.36 = 16,961.02/x
  3. Step 3: Cross multiply
    30,387.14x = 41,936.36 × 16,961.02
  4. Step 4: Simplify right side
    30,387.14x = 711,283,440.69
  5. Step 5: Solve for x
    x = 711,283,440.69/30,387.14
  6. Step 6: Final answer
    x = 23,407.38

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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.