Home / 20,141.55-30,217.11-19,806.88

Finding the Fourth Proportional to 20,141.55, 30,217.11 and 19,806.88

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Solution

The fourth proportional to 20,141.55, 30,217.11 and 19,806.88 is: 29,715.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,141.55 : 30,217.11 = 19,806.88 : x
  2. Step 2: Convert to fraction form
    20,141.55/30,217.11 = 19,806.88/x
  3. Step 3: Cross multiply
    20,141.55x = 30,217.11 × 19,806.88
  4. Step 4: Simplify right side
    20,141.55x = 598,506,671.72
  5. Step 5: Solve for x
    x = 598,506,671.72/20,141.55
  6. Step 6: Final answer
    x = 29,715.03

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1.5x scale

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.