Home / 30,584.67-42,179.22-19,818.60

Finding the Fourth Proportional to 30,584.67, 42,179.22 and 19,818.60

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Solution

The fourth proportional to 30,584.67, 42,179.22 and 19,818.60 is: 27,331.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,584.67 : 42,179.22 = 19,818.60 : x
  2. Step 2: Convert to fraction form
    30,584.67/42,179.22 = 19,818.60/x
  3. Step 3: Cross multiply
    30,584.67x = 42,179.22 × 19,818.60
  4. Step 4: Simplify right side
    30,584.67x = 835,933,089.49
  5. Step 5: Solve for x
    x = 835,933,089.49/30,584.67
  6. Step 6: Final answer
    x = 27,331.77

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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.