Home / 20,190.85-30,292.49-10,337.05

Finding the Fourth Proportional to 20,190.85, 30,292.49 and 10,337.05

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Solution

The fourth proportional to 20,190.85, 30,292.49 and 10,337.05 is: 15,508.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,190.85 : 30,292.49 = 10,337.05 : x
  2. Step 2: Convert to fraction form
    20,190.85/30,292.49 = 10,337.05/x
  3. Step 3: Cross multiply
    20,190.85x = 30,292.49 × 10,337.05
  4. Step 4: Simplify right side
    20,190.85x = 313,134,983.75
  5. Step 5: Solve for x
    x = 313,134,983.75/20,190.85
  6. Step 6: Final answer
    x = 15,508.76

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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.