Home / 40,811.23-61,235.68-18,631.41

Finding the Fourth Proportional to 40,811.23, 61,235.68 and 18,631.41

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Solution

The fourth proportional to 40,811.23, 61,235.68 and 18,631.41 is: 27,955.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,811.23 : 61,235.68 = 18,631.41 : x
  2. Step 2: Convert to fraction form
    40,811.23/61,235.68 = 18,631.41/x
  3. Step 3: Cross multiply
    40,811.23x = 61,235.68 × 18,631.41
  4. Step 4: Simplify right side
    40,811.23x = 1,140,907,060.71
  5. Step 5: Solve for x
    x = 1,140,907,060.71/40,811.23
  6. Step 6: Final answer
    x = 27,955.71

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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.