Home / 30,568.62-42,169.17-19,964.46

Finding the Fourth Proportional to 30,568.62, 42,169.17 and 19,964.46

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Solution

The fourth proportional to 30,568.62, 42,169.17 and 19,964.46 is: 27,540.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,568.62 : 42,169.17 = 19,964.46 : x
  2. Step 2: Convert to fraction form
    30,568.62/42,169.17 = 19,964.46/x
  3. Step 3: Cross multiply
    30,568.62x = 42,169.17 × 19,964.46
  4. Step 4: Simplify right side
    30,568.62x = 841,884,707.70
  5. Step 5: Solve for x
    x = 841,884,707.70/30,568.62
  6. Step 6: Final answer
    x = 27,540.81

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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.