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Finding the Fourth Proportional to 35,137.92, 48,492.48 and 20,238.72

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Solution

The fourth proportional to 35,137.92, 48,492.48 and 20,238.72 is: 27,930.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,137.92 : 48,492.48 = 20,238.72 : x
  2. Step 2: Convert to fraction form
    35,137.92/48,492.48 = 20,238.72/x
  3. Step 3: Cross multiply
    35,137.92x = 48,492.48 × 20,238.72
  4. Step 4: Simplify right side
    35,137.92x = 981,425,724.83
  5. Step 5: Solve for x
    x = 981,425,724.83/35,137.92
  6. Step 6: Final answer
    x = 27,930.67

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