Home / 30,620.58-42,253.14-17,193.30

Finding the Fourth Proportional to 30,620.58, 42,253.14 and 17,193.30

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Solution

The fourth proportional to 30,620.58, 42,253.14 and 17,193.30 is: 23,724.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,620.58 : 42,253.14 = 17,193.30 : x
  2. Step 2: Convert to fraction form
    30,620.58/42,253.14 = 17,193.30/x
  3. Step 3: Cross multiply
    30,620.58x = 42,253.14 × 17,193.30
  4. Step 4: Simplify right side
    30,620.58x = 726,470,911.96
  5. Step 5: Solve for x
    x = 726,470,911.96/30,620.58
  6. Step 6: Final answer
    x = 23,724.92

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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.