Home / 38,511.13-57,672.34-31,806.60

Finding the Fourth Proportional to 38,511.13, 57,672.34 and 31,806.60

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Solution

The fourth proportional to 38,511.13, 57,672.34 and 31,806.60 is: 47,631.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,511.13 : 57,672.34 = 31,806.60 : x
  2. Step 2: Convert to fraction form
    38,511.13/57,672.34 = 31,806.60/x
  3. Step 3: Cross multiply
    38,511.13x = 57,672.34 × 31,806.60
  4. Step 4: Simplify right side
    38,511.13x = 1,834,360,890.41
  5. Step 5: Solve for x
    x = 1,834,360,890.41/38,511.13
  6. Step 6: Final answer
    x = 47,631.97

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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.