Home / 35,234.21-48,621.35-20,123.90

Finding the Fourth Proportional to 35,234.21, 48,621.35 and 20,123.90

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Solution

The fourth proportional to 35,234.21, 48,621.35 and 20,123.90 is: 27,769.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,234.21 : 48,621.35 = 20,123.90 : x
  2. Step 2: Convert to fraction form
    35,234.21/48,621.35 = 20,123.90/x
  3. Step 3: Cross multiply
    35,234.21x = 48,621.35 × 20,123.90
  4. Step 4: Simplify right side
    35,234.21x = 978,450,841.54
  5. Step 5: Solve for x
    x = 978,450,841.54/35,234.21
  6. Step 6: Final answer
    x = 27,769.91

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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.