Home / 20,188.08-30,232.44-13,930.56

Finding the Fourth Proportional to 20,188.08, 30,232.44 and 13,930.56

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Solution

The fourth proportional to 20,188.08, 30,232.44 and 13,930.56 is: 20,861.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,188.08 : 30,232.44 = 13,930.56 : x
  2. Step 2: Convert to fraction form
    20,188.08/30,232.44 = 13,930.56/x
  3. Step 3: Cross multiply
    20,188.08x = 30,232.44 × 13,930.56
  4. Step 4: Simplify right side
    20,188.08x = 421,154,819.37
  5. Step 5: Solve for x
    x = 421,154,819.37/20,188.08
  6. Step 6: Final answer
    x = 20,861.56

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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.