Home / 20,237.45-30,375.61-9,856.49

Finding the Fourth Proportional to 20,237.45, 30,375.61 and 9,856.49

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Solution

The fourth proportional to 20,237.45, 30,375.61 and 9,856.49 is: 14,794.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,237.45 : 30,375.61 = 9,856.49 : x
  2. Step 2: Convert to fraction form
    20,237.45/30,375.61 = 9,856.49/x
  3. Step 3: Cross multiply
    20,237.45x = 30,375.61 × 9,856.49
  4. Step 4: Simplify right side
    20,237.45x = 299,396,719.69
  5. Step 5: Solve for x
    x = 299,396,719.69/20,237.45
  6. Step 6: Final answer
    x = 14,794.20

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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.