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Finding the Fourth Proportional to 20,000.87, 29,973.96 and 11,682.98

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Solution

The fourth proportional to 20,000.87, 29,973.96 and 11,682.98 is: 17,508.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,000.87 : 29,973.96 = 11,682.98 : x
  2. Step 2: Convert to fraction form
    20,000.87/29,973.96 = 11,682.98/x
  3. Step 3: Cross multiply
    20,000.87x = 29,973.96 × 11,682.98
  4. Step 4: Simplify right side
    20,000.87x = 350,185,025.33
  5. Step 5: Solve for x
    x = 350,185,025.33/20,000.87
  6. Step 6: Final answer
    x = 17,508.49

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1.5x scale

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.