Home / 36,134.40-49,861.12-20,217.60

Finding the Fourth Proportional to 36,134.40, 49,861.12 and 20,217.60

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Solution

The fourth proportional to 36,134.40, 49,861.12 and 20,217.60 is: 27,897.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,134.40 : 49,861.12 = 20,217.60 : x
  2. Step 2: Convert to fraction form
    36,134.40/49,861.12 = 20,217.60/x
  3. Step 3: Cross multiply
    36,134.40x = 49,861.12 × 20,217.60
  4. Step 4: Simplify right side
    36,134.40x = 1,008,072,179.71
  5. Step 5: Solve for x
    x = 1,008,072,179.71/36,134.40
  6. Step 6: Final answer
    x = 27,897.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.