Home / 30,934.56-42,693.84-19,609.68

Finding the Fourth Proportional to 30,934.56, 42,693.84 and 19,609.68

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Solution

The fourth proportional to 30,934.56, 42,693.84 and 19,609.68 is: 27,063.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,934.56 : 42,693.84 = 19,609.68 : x
  2. Step 2: Convert to fraction form
    30,934.56/42,693.84 = 19,609.68/x
  3. Step 3: Cross multiply
    30,934.56x = 42,693.84 × 19,609.68
  4. Step 4: Simplify right side
    30,934.56x = 837,212,540.37
  5. Step 5: Solve for x
    x = 837,212,540.37/30,934.56
  6. Step 6: Final answer
    x = 27,063.99

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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.