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Finding the Fourth Proportional to 30,672.33, 46,008.96 and 20,209.37

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Solution

The fourth proportional to 30,672.33, 46,008.96 and 20,209.37 is: 30,314.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,672.33 : 46,008.96 = 20,209.37 : x
  2. Step 2: Convert to fraction form
    30,672.33/46,008.96 = 20,209.37/x
  3. Step 3: Cross multiply
    30,672.33x = 46,008.96 × 20,209.37
  4. Step 4: Simplify right side
    30,672.33x = 929,811,865.91
  5. Step 5: Solve for x
    x = 929,811,865.91/30,672.33
  6. Step 6: Final answer
    x = 30,314.35

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.