Home / 31,742.92-47,624.10-20,040.04

Finding the Fourth Proportional to 31,742.92, 47,624.10 and 20,040.04

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Solution

The fourth proportional to 31,742.92, 47,624.10 and 20,040.04 is: 30,066.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,742.92 : 47,624.10 = 20,040.04 : x
  2. Step 2: Convert to fraction form
    31,742.92/47,624.10 = 20,040.04/x
  3. Step 3: Cross multiply
    31,742.92x = 47,624.10 × 20,040.04
  4. Step 4: Simplify right side
    31,742.92x = 954,388,868.96
  5. Step 5: Solve for x
    x = 954,388,868.96/31,742.92
  6. Step 6: Final answer
    x = 30,066.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.