Home / 20,171.23-30,225.23-12,760.03

Finding the Fourth Proportional to 20,171.23, 30,225.23 and 12,760.03

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Solution

The fourth proportional to 20,171.23, 30,225.23 and 12,760.03 is: 19,120.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,171.23 : 30,225.23 = 12,760.03 : x
  2. Step 2: Convert to fraction form
    20,171.23/30,225.23 = 12,760.03/x
  3. Step 3: Cross multiply
    20,171.23x = 30,225.23 × 12,760.03
  4. Step 4: Simplify right side
    20,171.23x = 385,674,702.19
  5. Step 5: Solve for x
    x = 385,674,702.19/20,171.23
  6. Step 6: Final answer
    x = 19,120.04

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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.