Home / 30,922.14-42,672.38-16,774.68

Finding the Fourth Proportional to 30,922.14, 42,672.38 and 16,774.68

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Solution

The fourth proportional to 30,922.14, 42,672.38 and 16,774.68 is: 23,148.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,922.14 : 42,672.38 = 16,774.68 : x
  2. Step 2: Convert to fraction form
    30,922.14/42,672.38 = 16,774.68/x
  3. Step 3: Cross multiply
    30,922.14x = 42,672.38 × 16,774.68
  4. Step 4: Simplify right side
    30,922.14x = 715,815,519.34
  5. Step 5: Solve for x
    x = 715,815,519.34/30,922.14
  6. Step 6: Final answer
    x = 23,148.96

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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.