Home / 20,344.91-30,433.11-19,100.75

Finding the Fourth Proportional to 20,344.91, 30,433.11 and 19,100.75

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Solution

The fourth proportional to 20,344.91, 30,433.11 and 19,100.75 is: 28,572.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,344.91 : 30,433.11 = 19,100.75 : x
  2. Step 2: Convert to fraction form
    20,344.91/30,433.11 = 19,100.75/x
  3. Step 3: Cross multiply
    20,344.91x = 30,433.11 × 19,100.75
  4. Step 4: Simplify right side
    20,344.91x = 581,295,225.83
  5. Step 5: Solve for x
    x = 581,295,225.83/20,344.91
  6. Step 6: Final answer
    x = 28,572.02

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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.