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Finding the Fourth Proportional to 29,980.41, 44,903.79 and 21,188.67

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Solution

The fourth proportional to 29,980.41, 44,903.79 and 21,188.67 is: 31,735.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,980.41 : 44,903.79 = 21,188.67 : x
  2. Step 2: Convert to fraction form
    29,980.41/44,903.79 = 21,188.67/x
  3. Step 3: Cross multiply
    29,980.41x = 44,903.79 × 21,188.67
  4. Step 4: Simplify right side
    29,980.41x = 951,451,588.06
  5. Step 5: Solve for x
    x = 951,451,588.06/29,980.41
  6. Step 6: Final answer
    x = 31,735.78

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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.