Home / 40,811.73-61,236.44-18,631.91

Finding the Fourth Proportional to 40,811.73, 61,236.44 and 18,631.91

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Solution

The fourth proportional to 40,811.73, 61,236.44 and 18,631.91 is: 27,956.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,811.73 : 61,236.44 = 18,631.91 : x
  2. Step 2: Convert to fraction form
    40,811.73/61,236.44 = 18,631.91/x
  3. Step 3: Cross multiply
    40,811.73x = 61,236.44 × 18,631.91
  4. Step 4: Simplify right side
    40,811.73x = 1,140,951,439.46
  5. Step 5: Solve for x
    x = 1,140,951,439.46/40,811.73
  6. Step 6: Final answer
    x = 27,956.46

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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.